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Lesson 1:

What Are Properties of Matter?

Lesson 2:

How Are Objects Put Together?

Lesson 3:

How Do Heating & Cooling Change Matter?

Lesson 4:

How Does Matter Change?

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Lesson 1:

What Are Properties of Matter?

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strength, flexibility, hardness, absorbency

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Lesson 2:

How Are Objects Put Together?

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Architect

  • Architects plan and draw design ideas.
  • They make models to show how their structures will look.
  • They think of ways to make structures that are safe and strong.

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Lesson 3:

How Do Heating & Cooling Change Matter?

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Lesson 4:

How Does Matter Change?

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WORDS TO KNOW:

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Matter – anything that takes up space and has mass. Matter is everywhere.

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Property –what something is like. (Color, shape, texture, flexibility, hardness)

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Solid – a state of matter that has its own shape and size.

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Liquid – a state of matter that takes the shape of its container.

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Melt – a change when a solid becomes a liquid.

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Freeze – a change when a liquid becomes a solid.

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Reversible – a change that CAN be undone.

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Irreversible – a change that CANNOT be undone.

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Properties of Matter

Unit 2 Lesson 1

  • Matter is anything that takes up space.
  • A property is one part of what something is like.

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States of Matter - Solids

  • A solid is a state of matter that �keeps its shape.
  • It will not change unless you do something to it, such as cut, bend, or break.
  • A solid keeps its shape even when you move it.

Unit 2 Lesson 1

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States of Matter - Liquids

Unit 2 Lesson 1

  • A liquid is a state of matter that does not have its own shape.
  • It flows to take the shape of its container.

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I will be able to explain how an object made up of smaller pieces can be taken apart and put together to make a different object.

Unit 2 Lesson 2

  • Objects may be the same size.
  • Objects may be the same shape.
  • Objects may be made from the same materials.

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Unit 2 Lesson 3

Melt - A change that happens by adding heat, which causes a solid to become a liquid.

Freeze - A change that happens by removing heat, which causes a

liquid to become a solid.

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Melt It

  • Heating can cause materials to change.
  • Adding heat causes matter to melt, cook, and burn.
  • When something melts, it changes from solid to liquid.
  • Melting changes the state of matter.
  • This is a pattern that happens when heat is added and something melts.

Unit 2 Lesson 3

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Cook It

  • Heat from the skillet was added to the pancake batter.
  • Heat caused the foods to change.
  • This is a pattern that happens when heat is added and something cooks.

Unit 2 Lesson 3

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Burn It

  • When something burns, heat changes its properties and makes it into another type of matter.
  • This is a pattern that happens when heat is added and something burns.

Unit 2 Lesson 3

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Cool It Down

  • When something freezes, it changes from a liquid to a solid when enough heat is taken away.
  • Freezing is a pattern that happens when enough heat is taken away.

Unit 2 Lesson 3

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  • A change that can be undone, or reversed, is a reversible change.
  • Freezing and melting can be reversible changes.

Unit 2 Lesson 4

Reversible Changes

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Irreversible Changes

  • Some materials can be changed forever.

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  • A change that cannot be reversed, or undone, is an irreversible change.

Unit 2 Lesson 4

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