Block 1: Lesson 1

What are the two main parts of a leaf?

• Leaf blade and fruit

• Leaf blade and flower

• Leaf blade and leaf stalk

• Leaf stalk and root

What is the function of the leaf blade?

• To make the surface bigger for sunlight

• To protect the leaf from wind

• To carry water

• To attach the leaf to the stem

What is chlorophyll?

• A part of the stem

• A type of flower

• A green substance in leaves

• A type of vein

What do veins in a leaf do?

• They hold the leaf upright

• They make the leaf green

• They carry air

• They carry water and food

What is the midrib?

• The tiny pores on the leaf

• The edge of the leaf

• The thick line in the center of the leaf

• The part that attaches the leaf to the stem

What is the purpose of the stomata?

• To carry nutrients

• To allow air to flow in and out

• To support the leaf blade

• To protect the leaf from sunlight

What does the leaf stalk do?

• It makes food for the plant

• It protects the leaf from wind

• It attaches the leaf to the stem

• It carries water to the leaf

What helps keep the leaf strong?

• The stomata

• The midrib

• The leaf blade

• The veins

Where are the stomata located?

• On the top side of the leaf

• On the underside of the leaf

• In the midrib

• In the leaf stalk

What do the veins carry to the leaf?

• Soil nutrients

• Water and minerals

• Air

• Sunlight