Leaf Layers

Which layer of sedimentary rock is the oldest?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-ESS1-4

The diagrams represent the rock layers and fossils found in 4 different samples pulled from the earth.

Which fossil appears to be the youngest?

• 
• 
• 
• 

Tags

NGSS.MS-ESS1-4

The diagram shows a rock layers next to a road. Layer 3 contains many plant fossils. Layer 3 most likely formed in which of these environment?

• Desert

• Forest

• Ocean

• Tundra

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

This diagram represents the layers of the earth and fossils found in each layer. Based on the drawing, which imprint is the oldest?

• Freshwater clam shells

• Fish bones

• Fern imprints

• Leaf imprints

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Small openings called ______ are found on the underside of leaves and allow gases to enter or leave the plant cells.

• Phloem

• Chloroplasts

• Xylem

• Stomata

Tags

NGSS.MS-LS1-6

What structure found on the leaves of the plant open up and allow for carbon dioxide gas to enter the plant?

• chloroplast

• stomata

• roots

• shoots

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What part of the plant is primarily responsible for photosynthesis?

• Roots

• Leaves

• Stems

• Flowers

Tags

NGSS.MS-LS1-6

Which of the leaf tissue layers contains most chloroplasts and absorbs most sunlight?

• Cuticle

• Upper epidermis

• Pallisade layer

• Spongy layer

• Lower epidermis

Tags

NGSS.MS-LS1-6

Which of the leaf tissue layers contains less chloroplasts and enables gas exchange in the leaf?

• Cuticle

• Upper epidermis

• Pallisade layer

• Spongy layer

• Lower epidermis

In the picture, spongy layer is labeled with _____

• A

• B

• C

• D

• E

Tags

NGSS.MS-LS1-2