Unit 10 Life Cycles

Which picture shows a tadpole?

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Which animal looks like its parents when it is born?

• a bear

• a butterfly

• a frog

Which stage of a butterfly’s life cycle does the picture show?

• an egg

• a larva

• a pupa

How is a frog’s life cycle different from a butterfly's life cycle?

• A frog hatches from an egg.

• A frog goes through metamorphosis.

• A frog changes from a tadpole to an adult.

What can you claim about a bean plant that gets light, water, and warmth?

• It will grow and change.

• It will not grow well.

• It will die.

Tina gives Plant 1 fresh water. She gives Plant 2 salt water. The pictures show her results.

What claim can you make based on the evidence?

• These plants grow better with salt water.

• These plants grow better with fresh water.

• These plants grow the same with either fresh water or salt water.

What can you observe about a bean seed by using a hand lens?

• the shape of the bean seed

• the way the bean seed feels

• the way the bean seed smells

What evidence supports the claim that bean plants grow and change during their life cycles?

• Bean plants need water and sunlight.

• Bean seeds grow roots and leaves when they germinate.

• Bean plants have green leaves.

Which part of a plant holds seeds?

• a fruit

• a leaf

• a stem

Which part of a plant’s life cycle is shown?

• adult plant

• seed

• seedling