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3rd Grade Science Common Core

Subjects : science, 3rd-grade, common-core

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Oxygen
4 types of producers
producer
the gas people breathe in...
list 6 ecosystems

2. An organism that breaks down plant and animal material
the gas people breathe in...
purpose of decomposers
food web
decomposer

3. Carbon dioxide
host
what gas do people breathe out
producer
4 types of consumers

4. A squirrel and a nut
Step 3 of the carbon dioxide and oxygen cycle
difference between producers and consumers
what organisms help each other
habitat

5. Consumers take in the oxygen that the producers make
Step 3 of the carbon dioxide and oxygen cycle
habitat
producer
Step 2 of the carbon dioxide and oxygen cycle

6. Producers - plant eaters - meat eaters
3 groups that make up the energy pyramid
ecosystem
consumer
4 types of consumers

7. Consumers give off carbon dioxide
3 groups that make up the energy pyramid
where is one organism harmed and one helped?
Step 3 of the carbon dioxide and oxygen cycle
community

8. Oxygen
difference between producers and consumers
Step 4 of the carbon dioxide and oxygen cycle
if the part of the food chain is missing...then what happens?
the gas people breathe in...

9. All the members of a certain type of a living thing in an area
Step 2 of the carbon dioxide and oxygen cycle
population
decomposer
consumer

10. Tundra - dessert - rain forest - ocean - pond - lake
community
purpose of decomposers
consumer
list 6 ecosystems

11. An organism that eats the producer and other consumers
list 6 ecosystems
consumer
the ONE thing all food that we eat comes from
Step 1 of the carbon dioxide and oxygen cycle

12. An organism that lives in or on another organism
carbon dioxide and oxygen cycle
4 types of consumers
parasite
community

13. An organism that eats the producer and other consumers
list 6 ecosystems
the ONE thing all food that we eat comes from
consumer
decomposer

14. All the living and non living things in an environment
what organisms help each other
5 things all living things need to survive
ecosystem
food chain

15. Plants
where is one organism harmed and one helped?
consumer
population
the ONE thing all food that we eat comes from

16. They all die
the gas people breathe in...
4 types of producers
if the part of the food chain is missing...then what happens?
food web

17. Consumers take in the oxygen that the producers make
food web
Step 2 of the carbon dioxide and oxygen cycle
consumer
ecosystem

18. Consumers eat producers and other consumers. Producers make their own food
3 groups that make up the energy pyramid
difference between producers and consumers
habitat
host

19. Tiger - bear - fox - wolf
3 groups that make up the energy pyramid
Step 4 of the carbon dioxide and oxygen cycle
parasite
4 types of consumers

20. Air - water - sun - shelter - food
what organisms help each other
where the world's oxygen supply comes from
5 things all living things need to survive
producer

21. Air - water - sun - shelter - food
Step 4 of the carbon dioxide and oxygen cycle
ecosystem
5 things all living things need to survive
where the world's oxygen supply comes from

22. Plants
food web
ecosystem
the ONE thing all food that we eat comes from
Step 4 of the carbon dioxide and oxygen cycle

23. A series of organisims that depend on another for food
population
where is one organism harmed and one helped?
where the world's oxygen supply comes from
food chain

24. The exchange of gasses between producers and consumers
food web
carbon dioxide and oxygen cycle
if the part of the food chain is missing...then what happens?
producer

25. Consumers eat producers and other consumers. Producers make their own food
difference between producers and consumers
habitat
the gas people breathe in...
the ONE thing all food that we eat comes from

26. A diagram that shows how energy in an ecosystem is used
Step 3 of the carbon dioxide and oxygen cycle
energy pyramid
5 things all living things need to survive
Step 1 of the carbon dioxide and oxygen cycle

27. Several food chains that are connected
4 types of producers
population
carbon dioxide and oxygen cycle
food web

28. All the living things in an ecosystem
food chain
host
community
where the world's oxygen supply comes from

29. Forest....plants and algae

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30. Producers take in carbon dioxide from the consumer
carbon dioxide and oxygen cycle
4 types of producers
parasite
Step 4 of the carbon dioxide and oxygen cycle

31. The exchange of gasses between producers and consumers
habitat
if the part of the food chain is missing...then what happens?
list 6 ecosystems
carbon dioxide and oxygen cycle

32. All the members of a certain type of a living thing in an area
Step 1 of the carbon dioxide and oxygen cycle
population
3 groups that make up the energy pyramid
community

33. All the living and non living things in an environment
the gas people breathe in...
habitat
purpose of decomposers
ecosystem

34. An organism that lives in or on another organism
ecosystem
parasite
community
carbon dioxide and oxygen cycle

35. We need them because they break down dead plants and animals
the ONE thing all food that we eat comes from
purpose of decomposers
food web
habitat

36. Producers give off oxygen as the make their own food
decomposer
Step 3 of the carbon dioxide and oxygen cycle
Step 1 of the carbon dioxide and oxygen cycle
what gas do people breathe out

37. An organism that makes it's own food
food chain
purpose of decomposers
ecosystem
producer

38. Tiger - bear - fox - wolf
the gas people breathe in...
community
4 types of consumers
difference between producers and consumers

39. A diagram that shows how energy in an ecosystem is used
Step 4 of the carbon dioxide and oxygen cycle
3 groups that make up the energy pyramid
energy pyramid
food web

40. The organism a parasite lives on or in
decomposer
host
food web
Step 1 of the carbon dioxide and oxygen cycle

41. A tapeworm and a human
where is one organism harmed and one helped?
purpose of decomposers
5 things all living things need to survive
parasite

42. Plant - grass - flower - trees
4 types of producers
what organisms help each other
if the part of the food chain is missing...then what happens?
where is one organism harmed and one helped?

43. An organism that breaks down plant and animal material
decomposer
habitat
3 groups that make up the energy pyramid
Step 4 of the carbon dioxide and oxygen cycle

44. An organism that makes it's own food
community
producer
habitat
community

45. The place where a plant or animal naturally lives or grows
habitat
4 types of consumers
difference between producers and consumers
list 6 ecosystems

46. A tapeworm and a human
purpose of decomposers
host
3 groups that make up the energy pyramid
where is one organism harmed and one helped?

47. Producers - plant eaters - meat eaters
3 groups that make up the energy pyramid
4 types of consumers
4 types of producers
population

48. We need them because they break down dead plants and animals
Step 2 of the carbon dioxide and oxygen cycle
the gas people breathe in...
where the world's oxygen supply comes from
purpose of decomposers

49. Forest....plants and algae

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50. Plant - grass - flower - trees
energy pyramid
4 types of producers
consumer
Step 1 of the carbon dioxide and oxygen cycle