Lesson 2 - Physical Factors

What are the physical factors in this image? 

• water, light and air
• birds, grass and air
• light, grass and birds 

Which of the following is least likely to affect an earthworm living deep in the soil?

• oxygen
• water
• light
• pH

What is the name of the layer of gases that surrounds Earth?

• atmosphere
• ecosystem
• environment
• greenhouse gas

The physical environment includes all of the factors below except ______________.

• oxygen content
• other living things
• pH value
• temperature

Is the log in the picture a physical or biotic factor?

• physical
• biotic

What is the pH of acid rain?

• 3
• 7
• 9
• 11

What is the difference between physical
and biotic factors?

• Physical factors are living things and biotic factors are non-living things.
• Physical factors are non-living things and biotic factors are living things.

Which of the following contains only physical factors?

• light, algae and temperature
• pH, crab and air
• light, bacteria and minerals
• water, temperature and pH

Minerals are needed by plants and animals for healthy growth. 

• true
• false

Plants, animals and their non-living environment make up a / an

• ecology
• habitat
• ecosystem
• community