The biosphere: Unit 1: The concept of the biosphere Flashcards Preview

Grade 7: Term 1: Natural Sciences > The biosphere: Unit 1: The concept of the biosphere > Flashcards

Flashcards in The biosphere: Unit 1: The concept of the biosphere Deck (13)
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1

What is the biosphere?

The biosphere is the part of Earth where living organisms are found.

2

What does the biosphere include?

The biosphere includes all the ecosystems on Earth on land and in water and their living and non - living components.

3

Where are living organisms found?

In various habitats in the ecosystems of Earth.

4

What 3 parts make up the biosphere?

The 3 parts are:
- The Hydrosphere
- The Lithosphere
- The Atmosphere

5

What is the Hydrosphere?

The Hydrosphere is all the oceans, lakes, rivers, underground water and water vapour.

6

What is the Lithosphere?

The Lithosphere is the Earth's crust; soil and rocks on and below Earth's surface.

7

What is the Atmosphere?

The Atmosphere is the layers of gas surrounding the Earth.

8

What different types of organisms can be found on Earth?

- Plants, like an aloe
- Animals, like a lion
- Very tiny organisms, like bacteria

9

What cannot be seen without a microscope?

Bacteria and other microscopic organisms.

10

1.1. LIFE IN THE LITHOSPHERE
Many organisms, including ________, live on the _______ of the Earth. Soil organisms such as _________s, moles, ants and _______ live in the lithosphere. Most ____ grow in soil.

Many organisms, including HUMANS, live on the SURFACE of the Earth. Soil organisms such as EARTHWORMs, moles, ants and BACTERIA live in the lithosphere. Most PLANTS grow in soil.

11

1.2. LIFE IN THE HYDROSPHERE
The seas, lakes, and _____ support many different _____ of living ________. Huge animals such as _______ and microscopic organisms, such as _______, live in the sea. Other organisms include crabs, fish, ______, plants and bacteria.

The seas, lakes, and RIVERS support many different KINDS of living ORGANISMS. Huge animals such as WHALES and microscopic organisms, such as PLANKTON, live in the sea. Other organisms include crabs, fish, INSECTS, plants and bacteria.

12

1.3. LIFE IN THE ATMOSPHERE
The atmosphere is not a ______ for living organisms, although many make use of the atmosphere as part of their _____ activities. For example, birds and ____ fly through the air. Seeds and _____ travel through the air carried by ____.

The atmosphere is not a HABITAT for living organisms, although many make use of the atmosphere as part of their DAILY activities. For example, birds and BATS fly through the air. Seeds and SPORES travel through the air carried by WIND.

13

Fun activity 1

THE 7 LIFE PROCESSES OF LIVING THINGS:
Name the life processes shown by the hen.
1. The hen eats food. N________
2. The hen has babies called chicks. R__________
3. The hen breathes air in and out. R__________
4. The hen gets rid of waste products. E_________
5. The hen was a small chick and is now big. G______
6. The hen can see, smell, hear, taste and feel.
S_________
7. The hen can walk, run and fly. M____________

1. The hen eats food. Nutrition
2. The hen has babies called chicks. Reproduction
3. The hen breathes air in and out. Respiration
4. The hen gets rid of waste products. Excretion
5. The hen was a small chick and is now big. Growth
6. The hen can see, smell, hear, taste and feel.
Sensitivity
7. The hen can walk, run and fly. Movement