STAAR Review

When light travels through air into a prism, it bends and separates into many colors. In which other situation does light bend? (5.6C)

• When light moves through air into water

• When light hits a wall

• When light passes through outer space

• When light hits a mirror

Tags

NGSS.MS-PS4-2

The model above shows layers of sediment on an ocean floor. Which of the following can explain how these layers can become rock over many years?

• sand in the sediment melts and turns into rock

• weight of the water compacts the sediment into rock

• changing water temperatures turn sand in the sediment into rock

• pollution caused by humans turns sediment into rock

Tags

NGSS.MS-ESS2-2

Which of these is the best conductor of electricity? (5.5A)

• Glass rod

• Cotton string

• Plastic tubing

• Copper penny

A student reads the label on the bottle of salad dressing shown here. Why would the student shake the salad dressing well before using it? (5.5A)

• Vinegar and oil have different densities.

• Vinegar and oil easily form a solution.

• Vinegar and oil both contain water.

• Vinegar and oil are both liquids.

Which of the following best describes the role of decomposers in an ecosystem?

• They produce their own food through photosynthesis.

• They consume other organisms for energy.

• They break down dead organisms and waste, returning nutrients to the soil.

• They are the primary consumers of plants.

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NGSS.MS-LS2-3

Why is biodiversity important in an ecosystem?

• It ensures that all organisms are the same size

• It increases the amount of pollution

• It helps the ecosystem be more resilient to changes

• It makes the ecosystem look more attractive

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NGSS.MS-LS2-5

What is the role of decomposers in an ecosystem?

• They produce oxygen through photosynthesis

• They eat living plants and animals

• They break down dead organisms and return nutrients to the soil

• They help pollinate plants

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NGSS.MS-LS2-2

NGSS.MS-LS2-3

What happens to the temperature of water as it goes from a solid to a liquid?

• It decreases

• It increases

• It stays the same

• It first increases, then decreases

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NGSS.MS-PS1-4

How do plants contribute to the water cycle?

• By drinking water from the soil

• By releasing water vapor into the air through transpiration

• By creating water during photosynthesis

• By absorbing water vapor directly from the air

Tags

NGSS.MS-ESS2-4

What does solubility refer to?

• The ability of a substance to dissolve in another substance.

• The temperature at which a liquid turns into a solid.

• The ability of a substance to react with oxygen.

• The temperature at which a solid turns into a liquid.