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1 | Title of Activity | Category | Description | Link | Lesson Plan | |||||||||||||||||||||
2 | Making your own wormery | Animals | You can see for yourself how earthworms tunnel through the soil by putting them into a special container called a wormery. Watch the worms stretch and pull their bodies as they move through the tunnels. | https://www.worldbookonline.com/kids/home#scienceprojects/animals/ex000003 | ||||||||||||||||||||||
3 | How bats use sound | Animals | Hearing is very important to bats. Some bats have a sense that is like the radar used in aircraft. These bats make sound signals that bounce back if they hit a solid object, such as a wall, a tree, or the insects on which these bats feed. Sounds bouncing back are called echoes. The pattern of echoes helps bats view their surroundings. This method of finding out what is around them is called echolocation. | https://www.worldbookonline.com/kids/home#scienceprojects/animals/ex000006 | ||||||||||||||||||||||
4 | Watch a metamorphosis! | Animals | Most insects lay eggs. The eggs of moths, butterflies, flies, beetles, ants, and wasps hatch into young called larvae. Caterpillars are the larvae of butterflies and moths. Insects, such as butterflies, pass through several stages from being an egg to becoming an adult. This amazing change is called metamorphosis. | https://www.worldbookonline.com/kids/home#scienceprojects/animals/ex000092 | ||||||||||||||||||||||
5 | Keeping a record | Animals | A person who is interested in watching and learning about living things is called a naturalist. All good naturalists keep a record, or diary, of the living things that they find. The words and pictures you record in your notebook will remind you of what you found, and where and when you found it. | https://www.worldbookonline.com/kids/home#scienceprojects/animals/ex000093 | ||||||||||||||||||||||
6 | Making an aerofoil | Machines | The wings of an airplane have a very special shape. They are fairly flat underneath, round at the front, and curved on top, with a sharp edge at the back. This shape is called an aerofoil. The way air moves around the airfoil creates an upward force called lift. This lifting force is stronger than the force of gravity that pulls the plane down. | https://www.worldbookonline.com/kids/home#scienceprojects/machines/ex000028 | ||||||||||||||||||||||
7 | Make a vacuum | Machines | When you drink with a straw, you create a vacuum. This science project will show you how empty space creates a vacuum. | https://www.worldbookonline.com/kids/home#scienceprojects/machines/ex000091 | ||||||||||||||||||||||
8 | How do boats float? | Machines | See how its shape helps a piece of clay float. | https://www.worldbookonline.com/kids/home#scienceprojects/machines/ex000087 | ||||||||||||||||||||||
9 | Friction from air | Machines | Even air creates friction. It rubs against moving things and slows them down. You can make a helicopter that uses the friction of air to slow its fall—and to spin, too. | https://www.worldbookonline.com/kids/home#scienceprojects/machines/ex000082 | https://www.worldbookonline.com/kids/home#activitygrownup/grownup/ti000056 | |||||||||||||||||||||
10 | See how a turbine spins | Machines | A turbine blade is similar to the blades on an electric fan. The angled blades draw air from behind and pull it forward. This activity will show you how the angled blades help the turbine spin. | https://www.worldbookonline.com/kids/home#scienceprojects/machines/ex000083 | https://www.worldbookonline.com/kids/home#activitygrownup/grownup/ti000034 | |||||||||||||||||||||
11 | From ice to water | Matter and Energy | Pressure and heat go hand in hand. The harder an object is squeezed, the warmer it becomes. Rubbing an object (friction) also produces heat. So, what would happen if the object were rubbed and squeezed at the same time? One place these two forces work together is during ice skating. Ice skating has been around for hundreds of years. However, scientists are still unsure why ice skates glide across solid ice. They do know that ice skates provide pressure and friction, but how the two work together is still somewhat of a mystery. | https://www.worldbookonline.com/kids/home#scienceprojects/matter/ex000008 | ||||||||||||||||||||||
12 | How strong is your magnet? | Matter and Energy | Some magnets are stronger than others. The force of magnetism is always strongest at the pole of a magnet. | https://www.worldbookonline.com/kids/home#scienceprojects/matter/ex000009 | ||||||||||||||||||||||
13 | Air pressure check | Matter and Energy | Air pushes from all sides on everyone and everything on the surface of the Earth. It even pushes upwards. You can show this by doing the following experiment. If the construction paper is too soft, or if the glass isn't completely full, this experiment will not work. You will spill the water. Do this experiment over a sink or outside. | https://www.worldbookonline.com/kids/home#scienceprojects/matter/ex000001 | ||||||||||||||||||||||
14 | Make a rainbow! | Matter and Energy | You can make your own rainbow using a specially shaped piece of solid glass called a prism. White light shines onto one side of the prism and bends as it travels through the glass. When it comes out at the other side, the light has been refracted and separated into its different colors. On a sunny day, you can also make a rainbow using a mirror. | https://www.worldbookonline.com/kids/home#scienceprojects/matter/ex000012 | ||||||||||||||||||||||
15 | Transforming matter | Matter and Energy | You have the ability to transform or change matter! Matter is anything that takes up space and has weight. By heating or cooling some matter, you can affect the molecules (the pieces that make up matter) and change them. Everywhere you look there are solids, liquids, and gases. Try this activity and watch the changes happen before your eyes. | https://www.worldbookonline.com/kids/home#scienceprojects/matter/ex000075 | https://www.worldbookonline.com/kids/home#activitygrownup/grownup/ti000006 | |||||||||||||||||||||
16 | A look at sound | Matter and Energy | Sound is a type of energy. Sounds are produced when an object vibrates. When this happens, the air around the object also vibrates. These vibrations in the air travel as sound waves. A jet engine makes a great deal of sound energy. The engine sounds loud when it is close, but you can sometimes hear the noise even when the plane is far away from you.Here is an experiment that you can do to demonstrate that sound energy moves through the air. | https://www.worldbookonline.com/kids/home#scienceprojects/matter/ex000002 | ||||||||||||||||||||||
17 | Floating liquids | Matter and Energy | Fresh water has a different density compared to that of salt water. In fact, all liquids have different densities. How do you find out if a liquid is more or less dense than another liquid? | https://www.worldbookonline.com/kids/home#scienceprojects/matter/ex000016 | ||||||||||||||||||||||
18 | Trapped in a bottle | Matter and Energy | When you pour water from a bottle, you hear a gurgling sound. This sound is made as air enters the bottle to replace the water that you have poured out. If the neck of the bottle is very narrow, air cannot enter the bottle easily. The water coming out and the air going in are fighting for space in the narrow neck. If the neck is very small, the water will not come out at all. You can try this for yourself. | https://www.worldbookonline.com/kids/home#scienceprojects/matter/ex000030 | ||||||||||||||||||||||
19 | Making waves | Matter and Energy | Waves are patterns that carry energy from place to place. Waves can move through water, air, and other materials. The up-and-down movements of water in the ocean are waves. Sound and light also travel in waves. | https://www.worldbookonline.com/kids/home#scienceprojects/matter/ex000013 | ||||||||||||||||||||||
20 | Make a snake dancer | Matter and Energy | Make this moving toy and you will see how heat energy can make something move. | https://www.worldbookonline.com/kids/home#scienceprojects/matter/ex000086 | https://www.worldbookonline.com/kids/home#activitygrownup/grownup/ti000030 | |||||||||||||||||||||
21 | Gases expand and contract | Matter and Energy | All gases are made up of tiny particles called atoms. Many gases are made up of groups of atoms linked together as molecules. For example, each molecule of oxygen gas contains two oxygen atoms. Gas molecules are always moving. When a gas is heated, its molecules move about faster, bouncing off one another. As the molecules become scattered, the gas takes up more space. It expands and becomes less dense. When a gas cools, it takes up less space, or contracts. This experiment shows how air contracts when it is cooled. | https://www.worldbookonline.com/kids/home#scienceprojects/matter/ex000011 | ||||||||||||||||||||||
22 | Hungry yeast! | Microscopic Life | Yeast makes bread "rise". Yeast makes a gas called carbon dioxide as it feeds on sugar and multiplies. Carbon dioxide is the same gas that makes the bubbles in fizzy drinks, such as soda pop. When yeast feeds on sugar, the carbon dioxide it produces makes a bubbly froth that works with the flour to make the bread rise and expand. Yeast can feed on sugar only when it's kept in a warm place. | https://www.worldbookonline.com/kids/home#scienceprojects/microscopic/ex000025 | ||||||||||||||||||||||
23 | How does an amoeba move? | Microscopic Life | Amebas are single-celled protists. Giant amebas are just big enough for you to see without a microscope. An ameba takes in its food by wrapping itself around it. The ameba then absorbs the food through its outer cell membrane. | https://www.worldbookonline.com/kids/home#scienceprojects/microscopic/ex000029 | ||||||||||||||||||||||
24 | Moving molecules | Microscopic Life | Here is a way to show that molecules in hot water move faster than molecules in cold water. | https://www.worldbookonline.com/kids/home#scienceprojects/microscopic/ex000084 | https://www.worldbookonline.com/kids/home#activitygrownup/grownup/ti000032 | |||||||||||||||||||||
25 | Testing the soil | Our Planet | Try this experiment to see how well the same kind of plant grows in different types of soil. | https://www.worldbookonline.com/kids/home#scienceprojects/planet/ex000005 | ||||||||||||||||||||||
26 | Universe watch | Our Planet | Most astronomers believe that the universe began with the big bang millions of years ago and that it is still expanding today. Here is an experiment that will help you see how objects in the universe may be moving in the expansion. | https://www.worldbookonline.com/kids/home#scienceprojects/planet/ex000088 | ||||||||||||||||||||||
27 | Grow your own crystals | Our Planet | It seems strange to think of hard, lifeless things growing, but crystals actually do grow. They grow by joining together. For example, the walls of a cave may be covered with a particular mineral. Water trickling down the walls washes crystals of this mineral onto the cave floor. The water, filled with many tiny crystals, forms a puddle on the floor. As the puddle slowly dries up, the crystals stick together. They form larger crystals. Here’s how you can grow your own crystals. | https://www.worldbookonline.com/kids/home#scienceprojects/planet/ex000015 | https://www.worldbookonline.com/kids/home#activitygrownup/grownup/ti000055 | |||||||||||||||||||||
28 | How much air is in the soil? | Our Planet | Both indoor and outdoor plants need sunlight, water, air, minerals, and nutrients to grow strong and healthy. | https://www.worldbookonline.com/kids/home#scienceprojects/planet/ex000007 | ||||||||||||||||||||||
29 | Going around in circles | Our Planet | The force that pulls us towards Earth is called the force of gravity. This force makes everything that you drop fall. On Earth, it holds everything in place-rocks, trees, buildings, oceans, and even the air. Matter has a gravitational attraction for other matter. The bigger a lump of matter is, the greater is this attraction. The sun has an enormous gravitational force, which stretches for billions of kilometers. It keeps the planets in orbit around the sun. | https://www.worldbookonline.com/kids/home#scienceprojects/planet/ex000026 | ||||||||||||||||||||||
30 | Watch how clouds form | Our Planet | Water is always present in the air around you, even when you can’t see it or feel it. This experiment shows how clouds form when cold air and warm air come together. | https://www.worldbookonline.com/kids/home#scienceprojects/planet/ex000080 | ||||||||||||||||||||||
31 | What is soil made of? | Our Planet | Almost all the land on our planet is covered by a layer of soil. Do you know what's in the soil? Soil is a mixture of living and non-living material. It includes the rotting remains of plants and animals, tiny living things, air, water, and small bits of rock. | https://www.worldbookonline.com/kids/home#scienceprojects/planet/ex000020 | ||||||||||||||||||||||
32 | Dig in! | Our Planet | Soil is actually made up of many different substances. When you pick up a handful of soil and look closely at it, you can see particles of many different colors, shapes, and sizes in it. Here is an easy way to separate the particles to get a closer look. | https://www.worldbookonline.com/kids/home#scienceprojects/planet/ex000076 | https://www.worldbookonline.com/kids/home#activitygrownup/grownup/ti000009 | |||||||||||||||||||||
33 | How the sun shines | Our Planet | The sun only seems to move across the sky. It is Earth, not the sun, that moves. Earth rotates, or spins, in space. The sun moves into our view and out of sight again as Earth whirls around. It takes Earth 24 hours to rotate around an imaginary line that runs from the North Pole to the South Pole. We call this line Earth's axis. | https://www.worldbookonline.com/kids/home#scienceprojects/planet/ex000014 | ||||||||||||||||||||||
34 | How much rain fell? | Our Planet | Listen to a weather forecaster on a radio or television, and you’ll hear how many inches of rain fell during a storm. How does the forecaster know how much rain fell? Scientists measure rainfall with an instrument called a rain gauge (gayj). Rain falls into the gauge. When the rain stops falling, scientists measure the amount of water in the gauge. You can make a simple rain gauge to measure the rainfall around your home. | https://www.worldbookonline.com/kids/home#scienceprojects/planet/ex000081 | https://www.worldbookonline.com/kids/home#activitygrownup/grownup/ti000054 | |||||||||||||||||||||
35 | Temp time | Our Planet | How much does the temperature change from day to day? How much does it change from hour to hour? Try this activity and chart the temperature to look for patterns. | https://www.worldbookonline.com/kids/home#scienceprojects/planet/ex000078 | https://www.worldbookonline.com/kids/home#activitygrownup/grownup/ti000022 | |||||||||||||||||||||
36 | What makes the grass green? | Plants | Plants have green parts called chloroplasts (KLAWR uh plasts). They use energy from sunlight to turn water and the gas carbon dioxide into sugar. Plants use this sugar to live and grow. | https://www.worldbookonline.com/kids/home#scienceprojects/plants/ex000085 | https://www.worldbookonline.com/kids/home#activitygrownup/grownup/ti000035 | |||||||||||||||||||||
37 | Plants and the water cycle | Plants | Plants play a part in the water cycle. They take in water from the ground and release it as moisture through their leaves and other green parts into the atmosphere. This is called transpiration. You can watch transpiration at work. | https://www.worldbookonline.com/kids/home#scienceprojects/plants/ex000018 | ||||||||||||||||||||||
38 | Why is there always grass to eat? | Plants | Can you name four different animals that eat grass? Horses, sheep, cattle, and deer eat grass. Eating grass from the ground is called grazing, and animals that feed in this way are called grazers. The seeds of grasses are full of a substance called starch. This starch is the seed's own food supply when it first starts to grow. But starch is a good food for human beings, too. Starch can give us much of the energy we need to live. | https://www.worldbookonline.com/kids/home#scienceprojects/plants/ex000022 | ||||||||||||||||||||||
39 | Underwater oxygen | Plants | Plants make oxygen. Want proof? Watch a plant release oxygen that you can see when you place the plant underwater. | https://www.worldbookonline.com/kids/home#scienceprojects/plants/ex000079 | https://www.worldbookonline.com/kids/home#activitygrownup/grownup/ti000024 | |||||||||||||||||||||
40 | What happens to seedlings in the dark? | Plants | All living things are made up of cells, but plant cells are different from animal cells. The cells in the leaves of most plants contain tiny green parts called chloroplasts. Each chloroplast contains a chemical called chlorophyll that makes the leaves green. The chloroplasts use sunlight, carbon dioxide, and water to make food for the plant. | https://www.worldbookonline.com/kids/home#scienceprojects/plants/ex000023 | ||||||||||||||||||||||
41 | Do plants like salt? | Plants | Although many plants live in or near the fresh waters of rivers, lakes, and streams, salt water is quite another matter! Many plants cannot survive in places where the water contains a lot of salt. Plants that live near the sea have had to develop ways of coping with, or tolerating, a lot of salt. Botanists call these plants halophytes. Many halophytes live in saltwater marshes and in swamps that are covered by seawater when the tide comes in. | https://www.worldbookonline.com/kids/home#scienceprojects/plants/ex000019 | ||||||||||||||||||||||
42 | Roots and shoots | Plants | Did you know that roots grow downward? Roots fix plants firmly in the ground. Large trees, for example, have many big, spreading roots to anchor them. Roots also absorb water and other nutrients to help plants grow. Did you know that shoots grow upwards? Shoots grow toward the light, which they need in order to make their own food. Sunlight provides the energy that plants use to make the sugars and starches that are their food. | https://www.worldbookonline.com/kids/home#scienceprojects/plants/ex000017 | ||||||||||||||||||||||
43 | Make a three-color carnation | Plants | When you drink with a straw, you draw liquid up through it. Plants pull water up through tubes in their stems. You can watch this happen. | https://www.worldbookonline.com/kids/home#scienceprojects/plants/ex000090 | https://www.worldbookonline.com/kids/home#activitygrownup/grownup/ti000071 | |||||||||||||||||||||
44 | What do seeds need to germinate? | Plants | Seeds will not germinate until they receive three things-water, warmth, and oxygen-all at the same time and in the correct amounts. You can prove this for yourself by carrying out a simple experiment. | https://www.worldbookonline.com/kids/home#scienceprojects/plants/ex000024 | ||||||||||||||||||||||
45 | See-through seeds | Plants | Watch seeds sprout before your eyes with this activity that shows the whole amazing process. | https://www.worldbookonline.com/kids/home#scienceprojects/plants/ex000077 | https://www.worldbookonline.com/kids/home#activitygrownup/grownup/ti000019 | |||||||||||||||||||||
46 | How powerful is your battery? | Science You Can Use | A battery is made of particular metals and chemicals, which produce an electric current. When a battery is connected into a circuit, a current flows out of the battery through the negative terminal. The current flows back into the battery through the positive terminal. Meanwhile, within the battery's electrolyte, electric charges are also in motion, completing the circuit. As the charges flows through the battery, the active chemicals are gradually used up. The battery starts to run down. | https://www.worldbookonline.com/kids/home#scienceprojects/science/ex000035 | ||||||||||||||||||||||
47 | Effects of temperature on microwave popcorn | Science You Can Use | Microwave ovens are devices that heat food quickly. Microwave ovens produce a form of energy called microwaves. This energy causes tiny bits of matter in food to vibrate. The vibrating bits of matter rub against one another, producing heat. The heat cooks the food . | https://www.worldbookonline.com/kids/home#scienceprojects/science/ex000036 | ||||||||||||||||||||||
48 | Is there a difference between the sizes of eggs? | Science You Can Use | Eggs at the store come in packages marked with various sizes: medium, large, extra large, and jumbo. But how can you tell exactly how big an egg is? Because of their curved shape, you can't use a ruler. You can, however, use a measuring glass full of water. Like all solid objects, eggs take up volume. You can measure an egg's volume by measuring how much water it displaces. | https://www.worldbookonline.com/kids/home#scienceprojects/science/ex000033 | ||||||||||||||||||||||
49 | Under pressure | Science You Can Use | As water gets deeper, water pressure increases. Do this experiment and see for yourself! | https://www.worldbookonline.com/kids/home#scienceprojects/science/ex000089 | ||||||||||||||||||||||
50 | The Wet paper towel test | Science You Can Use | A paper towel contains millions of tiny, hollow tubes between its paper fibers. These tubes are called capillaries, and they explain why paper towels are so good at absorbing water. Water tends to "clump" against surfaces, which is partly why it's so easy to suck water up through a straw. If a straw is extremely tiny and narrow-like the capillaries in a paper towel-the water clumps even more strongly. This effect, called capillary action, is strong enough to suck the water up into the paper towel on its own! | https://www.worldbookonline.com/kids/home#scienceprojects/science/ex000032 | ||||||||||||||||||||||
51 | How long before bread goes bad? | Science You Can Use | Bread is a food eaten all over the world. Bread is made by baking dough. Dough is made of flour mixed with water or milk. There are three main types of bread: yeast bread, quick bread, and flat bread. More than 4,500 years ago, people in Egypt learned how to make yeast bread. Until the late 1800's, most bread was made from whole-grain flour. White flour only contains the starchy part of the whole wheat grain, and removing the rest was costly. Then new milling machines made white flour cheaper, and white bread became common. However, milling removes much of the vitamins, minerals, and fiber from the grains. As a result, many bakeries add vitamins and minerals to white bread today. | https://www.worldbookonline.com/kids/home#scienceprojects/science/ex000034 | ||||||||||||||||||||||
52 | Fire mountain | Science You Can Use | This classic science project is great fun, but can get messy. You may want to take it outside, just to be safe. Create your own volcano with erupting lava to help get a visual understanding of real volcanic eruptions. | https://www.worldbookonline.com/kids/home#scienceprojects/science/ex000074 | https://www.worldbookonline.com/kids/home#activitygrownup/grownup/ti000002 | |||||||||||||||||||||
53 | How does temperature affect soda pop fizz? | Science You Can Use | A soft drink is a flavored beverage. Soft drinks also are called pop, soda, or soda pop. Cola is the most popular soft drink. Other flavors include lemon-lime, orange, and root beer. Soft drinks are made of carbonated water and syrup. Carbonated water is produced by adding carbon dioxide gas to water under pressure. The gas makes the water bubble and fizz. Syrup is made of acid, a blend of flavors, and sweeteners. | https://www.worldbookonline.com/kids/home#scienceprojects/science/ex000031 | ||||||||||||||||||||||
54 | What's your breathing rate? | Your Body | Depending on what you are doing, you breathe more quickly or more slowly. The speed at which you breathe is called your breathing rate. When you’re asleep, you don’t need much energy. You need less oxygen, and so you breathe slowly. If you’re running in a race, you need plenty of energy, so you breathe more quickly and deeply. See how quickly or slowly you breathe when you are doing different activities. | https://www.worldbookonline.com/kids/home#scienceprojects/body/ex000004 | ||||||||||||||||||||||
55 | Test the speed of your reaction | Your Body | In these tests, you can find out about the speed of your sense of sight and sense of touch. In both these tests, hold your thumb and forefinger so that they are just touching the ruler. For the sight test, watch the ruler to see when it falls and grab it as quickly as possible. For the touch test, close your eyes and grab the ruler as soon as you feel it falling. | https://www.worldbookonline.com/kids/home#scienceprojects/body/ex000027 | ||||||||||||||||||||||
56 | Practice makes perfect | Your Body | Does a task you are not used to doing take longer than a task you are used to doing? Can you get better and quicker at the task by doing it again and again? | https://www.worldbookonline.com/kids/home#scienceprojects/body/ex000010 | ||||||||||||||||||||||
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