Physical Science

1. Matter is anything that

• has mass and takes up space

• is a solid or a liquid

• has volume

• has volume

2. Holly has a cube of sugar. She crushes it into powder. What has changed about the sugar?

• The mass

• The weight

• The shape

• The shape and the mass

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3. Dash pours 15 grams of oil and 40 grams of water into a beaker. The beaker has a mass of 90 grams. When he places the beaker with the mixture onto a balance scale, it will show a mass of:

• a. 134 grams

• b. 145 grams

• c. 55 grams

• d. 15 grams

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4. Which mixture could you BEST separate with a filter?

• a. Salt and pepper

• b. Rocks and wood shavings

• c. Sugar and iron filings

• d. Sand and water

5. Danielle pours lemon juice over a tablespoon of baking soda. At first, many bubbles form, but then they slowly stop forming. What is the BEST clue that this is a chemical change and not a physical change?

• a. The bubbles stop forming

• b. Bubbles form without heating the liquid

• c. The lemon juice and baking soda form a mixture

• d. The mixture can be separated

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6. An ice cube melts because:

• a. The ice freezes solid.

• b. The ice dissolves in water

• c. Heat is being added and the particles begin to vibrate

• d. The particles bounce freely

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7. Which combination could you use a magnet to separate?

• a. Sugar and water

• b. Sawdust and woodchips

• c. A salad

• d. Iron filings

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8. When a rock is placed in water, it sinks to the bottom of the container. This happens because

• a. The rock is heavier than the water

• b. The rock is less dense than the water

• c. The rock is more dense than the water

• d. The rock is lighter than the water

9. When a solid changes to a liquid, it is called the ______________________________ point.

• Melting

• Freezing

• Boiling

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10. When a liquid changes to a solid, it is called the ______________________________ point.

• Melting

• Freezing

• Boiling

Tags

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