WorksheetsEarth's Support of Life
Total questions: 16
Worksheet time: 8mins
What is NOT essential for living things to survive?
Food
Water
Shelter
Transportation
What is the process plants on earth go through to make food using the sun's energy?
Photosynthesis
Glucose
Interaction
Greenhouse effect
During photosynthesis, plants convert carbon dioxide and water into oxygen and what else?
water
carbon dioxide
oxygen
glucose
What is the foundation for most food webs?
Animals
Plants
People
Food
How long does it take for Earth to rotate on its axis?
12 hours
365 days
24 hours
60 minutes
Why is the Earth rotating important?
It allows all parts of the earth to receive sunlight throughout a day
It holds our atmosphere in place
It makes our days longer
It makes our days shorter
What would happen if Earth was closer to the sun
It would be much hotter
It would be much colder
It would always be daytime
It would always be night time
What would happen if Earth was farther from the sun
It would be much hotter
It would be much colder
It would always be daytime
It would always be nighttime
What is unique about water on earth
It tastes good
It is frozen
It is in liquid form on the surface
It is only underground
In what states can water be found on earth?
Gas
Liquid
Solid
Jelloed
What percentage of Earth's surface is covered in water?
25%
50%
71%
99%
What holds our atmosphere in place?
Gravity
Oxygen
Carbon Dioxide
The Moon
What protects the earth from dangerous rays?
The Ozone layer
Radiation
Earth's surface
Clouds
What does the ozone protect us from?
Aliens
Ultraviolet radiation
Carbon dioxide
homework
What has caused the ozone to become thin in spots?
Human polution
Extreme weather
Flying objects
Carbon dioxide
Carbon dioxide helps the earth in multiple ways. Which way does it not help?
Helps plants go through photosynthesis
Helps warm the planet
Gives humans something to breath in
