Bodies of Knowledge Review - A

In living things with many cells, new cells replace old ones to keep the body balanced. What is this process called?

• Breathing

• Keeping balance

• Moving nutrients

• Making food

Tags

NGSS.MS-LS1-3

Taking too many big fish from the ocean can hurt small fish. Why does this happen?

• Small fish get sick more often.

• Small fish need big fish to live.

• More medium-sized fish eat small fish.

• Small fish fight over less food.

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NGSS.MS-LS2-1

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A scientist finds a rock made of layers in a tall mountain. How did this rock likely get there?

• The mountain’s pressure made the rock.

• An ocean floor was pushed up to form the mountain.

• Wind carried the rock to the mountain.

• Lava from the mountain covered the rock.

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

Anjali puts plants and snails in a fish tank. She thinks if there are fewer plants, some snails will die. What question is she trying to answer?

• How many plants can a tank hold?

• Which animals eat snails?

• How do plants help snails live?

• How do dead plants affect snails?

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NGSS.MS-LS2-1

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Scientists repeat experiments to make sure their results are correct. How does this help science?

• It slows down new discoveries.

• It makes results more trustworthy.

• It proves ideas are always right.

• It creates new experiments.

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Some animals survive better because they have traits that help them. What is this called?

• Using all resources

• Natural selection

• Being the biggest

• Pushing other animals away

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NGSS.MS-LS4-4

A new living thing has many cells, eats nutrients from its surroundings, and has cell walls but doesn’t make its own food. What group does it belong to?

• Animals

• Bacteria

• Fungi

• Plants

Two students build circuits to light three bulbs. One uses one switch, and the other uses three switches. Both work. What does this show?

• Experiments need a long time.

• Every experiment needs a control group.

• You don’t always need a prediction.

• Different ways can get the same result.

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NGSS.MS-ETS1-2

Cool oceans cause sea breezes. Why does this happen?

• Cool air rises from the ocean.

• Warm air rises from the ocean.

• Cool air rises from the land.

• Warm air rises from the land.

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NGSS.MS-ESS2-5

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A tree falls in a forest, letting sunlight reach the ground. What shows animals or plants competing?

• Young trees grow close together in the sunlight.

• Snakes eat mice in the open area.

• Bugs eat the fallen tree.

• A plant grows on the fallen tree.

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NGSS.MS-LS2-1

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