Grade 4 TCI Science - Unit 1 Lesson 2 Review

Some leaves are covered with hairs, so that _____

• animals get poked

• water is conserved/saved

• insects slip off

• other plants cannot grow nearby

What is the function (job) of spines, thorns, and prickles?

• to protect the plant from animals eating them

• to conserve (save) water

• to poison animals

• to trap insects

How does the African violet protect itself?

• hairy leaves to trap water

• prickles to keep animals away

• poison to harm animals

• sticky resin to trap animals

• big stem to store water

How does the Cork Oak Tree use bark to protect itself?

Select 3 correct answers

• from fire

• from water loss

• from insects

• from freezing

Which two plants store water in its trunk?

• Baobab tree

• Foxglove

• Nickernut

• Cactus

How does a white birch tree protect itself?

• it has waxy and slippery leaves so insects slide right off

• the leaves fold up on a hot and dry day

• the bark protects the tree from fire

• the bark keeps the tree cool in the sun

What is resin?

• a poison that harms animals

• a sticky substance that traps insects

• the hair on leaves

• the spikes on a cactus

a kind of leaf that is stiff, hard, thin, and very sharp

• spine

• thorn

• prickle

a sharp, pointy kind of branch or stem

• thorn

• prickle

• spine

a hard, sharp, and pointy structure that grows out of the outer covering of a plant stem

• thorn

• prickle

• spine