Grade 4 TCI Science - Unit 1 Lesson 2 Review

Front

What tree has leaves that fold up during dry, hot days?

Back

Mimosa tree.

Front

Which plant has a stem that holds extra water and thin, sharp leaves?

Back

Cactus.

Front

What is the term for the sticky substance produced by some plants?

Back

Resin.

Front

What are the sharp, pointed structures on a cactus called?

Back

Spines.

Front

What plant has very waxy and slippery leaves to deter insects?

Back

Holly.

Front

What is the main function of a plant's leaves?

Back

To perform photosynthesis and produce food.

Front

What do we call the outer protective layer of a tree?

Back

Bark.

Front

What is the purpose of thorns on plants?

Back

To protect the plant from herbivores.

Front

What type of plant is known for its ability to survive in dry environments?

Back

Succulent.

Front

What is the process by which plants make their own food using sunlight?

Back

Photosynthesis.