Science Test - Studies Weekly Weeks 20-22

Why is a microscope needed to see leaf layers?

• The leaf is too thick.

• The layers are closed.

• Wax blocks the layers.

• The layers are very small.

How is human skin and a plant leaf similar?

• They both make food.

• They both secrete wax.

• They are both thin and flat.

• They both have an epidermis.

Tags

NGSS.MS-LS4-2

What is the purpose of the epidermis on a leaf?

• to make food

• to collect water

• to gather nutrients

• to protect the plant

Which part of the leaf is waxy?

• the bottom

• the stem

• the stomata

• the top

How is a stoma like a mouth?

• It eats food.

• It drinks water.

• It breathes in air.

• It makes noise.

Which structure performs photosynthesis?

• plant cell

• mesophyll

• chloroplast

• stoma

Tags

NGSS.MS-LS1-6

Why do many trees shed leaves in the winter?

• to keep the ground warm

• to help animals find shelter

• to protect against blowing over

• to store food they made in fall

Where are tropical areas found?

• at the poles

• near the Equator

• only on coastlines

• high on mountains

Which biome has the highest rate of photosynthesis?

• grassland

• polar

• tropical

• tundra

Tags

NGSS.MS-LS1-6

Which structure helps polar bears survive arctic winters?

• short tail

• small ears

• layer of fat

• sharp claws