Unit 1 Matter Summative Assessment Question Bank

**Teachers,

Feel free to use questions from this document to create your own test. This document will have the questions organized by standard, so you are able to pick questions that cover all the standards.

Benchmark 6.2.1.1.1

Explain density, dissolving, compression, diffusion, and thermal expansion using the particle model of matter.

1. Liquids are easy to compress.

1. True
2. False

2. Gases are easy to compress.

1. True
2. False

3. While using the displacement method to measure the volume of 2 blocks of the same mass, students were able to figure out which block had the greater density. Which one do you think they chose and why?

3. Block 1 displaced 35 mL of water
4. Block 2 displaced 20 mL of water

4. When energy is added to a solid, what is happening to the motion of the particles?

1. Particles are slowing down
2. Particles are disappearing
3. Particles are speeding up
4. Particles are becoming larger

5. Explain why the volume of a gas increases when heated.

Benchmark 6.2.1.2.1

Identify evidence of physical changes, including phase or shape, and dissolving in other materials.

1. DJ and Octavio were asked to bring a demonstration in to school that showed a physical change to an substance. Which student completed the assignment correctly and why?

1. DJ brought in some baking soda and vinegar and showed the class. When mixed together, it bubbles up over the side of the cup. Video on baking soda and vinegar.
2. Octavio boiled water in front of the class. Video on boiling water.

2. If Maria mixed sugar and water until the sugar fully dissolved, the solution will have  ___________. Explain why.

1. the same mass as the water before mixing in the sugar
2. less mass than the water before mixing in the sugar
3. the same mass as the water and sugar before mixing the two
4. more mass than the water and sugar before mixing the two

Benchmark 6.2.1.2.2

Describe how mass is conserved during physical change in a closed system.

1. Which of the following is in a closed system?

1. an ice cube in a glass
2. an ice cube sitting on a sidewalk
3. an ice cube in a sealed bag
4. an ice cube with other ice cubes, just “chillin’”

2. Sammi makes a solution using the following: 200 grams of sugar, 350 grams of water, 50 grams of food coloring. When she mixes the ingredients together what will the mass of the solution be?

1. 350 grams
2. 400 grams
3. 550 grams
4. 600 grams

3. Explain the conservation of mass?

4. 5 grams of salt is added to 100 mL of water and stirred until the salt is dissolved. The salt water is boiled until dry. How much salt will be left in the container?

1. 105 grams
2. 95 grams
3. 0 grams
4. 5 grams

Benchmark 6.2.1.2.3

Use the relationship between heat and the motion and arrangement of particles in solids, liquids, and gases to explain melting, freezing, condensation, and evaporation.

1. When energy is added to a liquid, what happens?

1. evaporates
2. freezes
3. stays a liquid and warms
4. condenses
5. both b and d
6. both a and c
7. none of the above

2. When energy is taken away from a liquid, what happens?

1. evaporates
2. freezes
3. stays a liquid  and cools
4. condenses
5. both b and d
6. both a and c
7. none of the above

3. On a warm sunny day, wet clothes are hung out to dry. What process is involved? Explain using the particle model.

4. The melting point of a substance is the temperature at which it changes from:

1. solid to a gas
2. solid to a liquid
3. liquid to a gas
4. gas to a solid

5. Put the following terms into the diagram correctly to show changes in states of matter.

condensation, melting, evaporation, freezing

7. When a gas turns into a liquid, it __________________________________.

1. loses energy
2. gains energy

8. When a liquid turns into a solid, it _________________________________.

1. loses energy
2. gains energy

9. When a solid turns into a liquid, it _________________________________.

1. loses energy
2. gains energy

10. When a liquid turns into a gas, it _________________________________.

1. loses energy
2. gains energy