Y3_Test_Unit 1

What do plants need to be healthy?

• Rocks

• Plastic

• Sand

• Water

What happens if seeds do not get enough warmth?

• They will grow tall

• They will not germinate

• They will germinate

• They will turn yellow

What do leaves need to make food?

• Water

• Air

• Sunlight

• Soil

What happens to a plant if it does not get enough water?

• Leaves become dry

• Roots grow deeper

• Leaves turn green

• Stem becomes strong

What is the direction of water flow in a plant?

• From leaves to roots

• From roots to leaves

• From flowers to roots

• From soil to air

What can happen if the temperature is too cold for a plant?

• Plant will produce more leaves

• Water will freeze

• Water will evaporate

• Plant will grow faster

What color does a white flower turn when it absorbs colored water?

• Red

• Blue/Purple

• Green

• Yellow

Why does a white flower placed in colored water change its color?

• Because flower absorb the colored water

• Because it dyes the flower

• Because the transportation of water through stem

• Because of sunlight

What do plants need to grow besides water?

• Rocks

• Sand

• Plastic

• Air

What happens to water in a hot environment?

• It freezes

• It evaporates

• It stays the same

• It turns into ice