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Questions and Answers
Which of the following actions can change solid matter?
Which of the following actions can change solid matter?
- Dissolving it in water
- Melting it into a liquid
- Evaporating it into gas
- Cutting, bending, and folding it (correct)
What happens to orange juice when made from fresh oranges?
What happens to orange juice when made from fresh oranges?
- It remains a solid after being processed
- It changes from a solid to a liquid
- It cannot be reverted back to oranges (correct)
- It can be turned back into fresh oranges later
Which ingredients are necessary to make concrete for a sidewalk?
Which ingredients are necessary to make concrete for a sidewalk?
- Stone, gravel, and cement
- Brick, water, and sand
- Water, sand, and cement (correct)
- Water, sand, and gravel
Which statement accurately describes the change in matter when creating a paper animal?
Which statement accurately describes the change in matter when creating a paper animal?
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What describes a characteristic of matter in relation to space?
What describes a characteristic of matter in relation to space?
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Study Notes
Changing Matter
- Matter can be changed by cutting, bending, and folding.
- Matter can be changed by tearing, taking it apart, and breaking it.
- Changes in matter can sometimes be undone, but sometimes they cannot.
- When matter changes, the object often has a different shape, form, or purpose.
Matter in Many Forms
- Matter can exist in solid, liquid, and gaseous forms.
- A sidewalk is made of solid concrete, but it includes liquid water as one of its components.
Making Concrete
- Concrete is a mixture used for sidewalks.
- Components of concrete include water, sand, and cement.
- To make concrete, the sand and cement are mixed together.
- Water is added to the mixture until it's almost too hard to stir.
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