Autumn Leaves and Chlorophyll Changes

Autumn Leaves and Chlorophyll Changes

Assessment

Interactive Video

Biology

3rd - 5th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video explains why leaves change color in autumn, focusing on the role of chlorophyll and other pigments. As days shorten and temperatures drop, chlorophyll fades, revealing yellow, orange, and red pigments. Weather conditions like sunlight and frost affect color intensity. Leaves eventually fall, enriching the soil. The video concludes with a reminder to enjoy the beauty of autumn leaves.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are some of the colors that leaves turn during autumn?

Black and grey

Blue and purple

Red and yellow

Pink and white

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary role of chlorophyll in leaves?

To give leaves their red color

To help leaves absorb sunlight

To make leaves waterproof

To protect leaves from insects

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do leaves stop producing chlorophyll in the fall?

Because the leaves are too old

Because the tree is growing new leaves

Because the tree is preparing for winter

Because the tree no longer needs food

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which pigments become visible in leaves as chlorophyll fades?

Blue and green

Yellow and orange

Pink and purple

Black and white

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What causes some leaves to turn red, rust, or purple?

The decrease in sunlight

The increase in chlorophyll

The formation of new pigments from stored sugar

The presence of tannin

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of tannin in some leaves?

To help leaves absorb sunlight

To give leaves a brown color

To make leaves waterproof

To protect leaves from insects

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does weather affect the color of autumn leaves?

Snow makes the colors more vibrant

Wind makes the colors dull

Sunshine and cool nights enhance colors

Rain makes the colors brighter

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