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Understanding Tree Growth

Understanding Tree Growth

Assessment

Interactive Video

Biology, Science

6th - 10th Grade

Practice Problem

Medium

Created by

Lucas Foster

Used 1+ times

FREE Resource

The video explores the source of a tree's mass, debunking the common belief that it comes from soil. Through historical experiments and discussions, it reveals that trees primarily gain mass from carbon dioxide in the air, with sunlight playing a crucial role in photosynthesis. The video highlights the surprising fact that trees are largely made of air, challenging viewers to rethink their understanding of tree growth.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the common belief about where trees get their mass?

From the air

From the soil

From water

From sunlight

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why isn't there a big hole around a tree if it takes mass from the soil?

The soil regenerates quickly

The tree takes mass from the air

The tree takes mass very gradually

The tree doesn't take mass from the soil

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What did Johann Baptist Van Helmholt's experiment demonstrate?

Trees gain mass from the soil

Trees gain mass from water

Trees do not gain mass from the soil

Trees gain mass from sunlight

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What did Van Helmholt conclude about the tree's mass?

It comes from air

It comes from sunlight

It comes from water

It comes from the soil

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the misconception about trees according to Van Helmholt?

Trees are made entirely of air

Trees are made entirely of water

Trees are made entirely of sunlight

Trees are made entirely of soil

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a common misconception about what trees 'eat'?

They eat air

They eat water

They eat sunlight

They eat soil

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What role does sunlight play in the growth of trees?

It is not necessary for growth

It is converted into water

It adds mass to the tree

It provides energy for growth

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