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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. They all die
if the part of the food chain is missing...then what happens?
food chain
difference between producers and consumers
what organisms help each other

2. Consumers take in the oxygen that the producers make
Step 3 of the carbon dioxide and oxygen cycle
Step 2 of the carbon dioxide and oxygen cycle
carbon dioxide and oxygen cycle
what gas do people breathe out

3. Tiger - bear - fox - wolf
where is one organism harmed and one helped?
purpose of decomposers
4 types of consumers
food chain

4. Plant - grass - flower - trees
where the world's oxygen supply comes from
food web
Step 1 of the carbon dioxide and oxygen cycle
4 types of producers

5. Consumers eat producers and other consumers. Producers make their own food
difference between producers and consumers
ecosystem
4 types of producers
Step 2 of the carbon dioxide and oxygen cycle

6. A series of organisims that depend on another for food
food chain
energy pyramid
4 types of consumers
ecosystem

7. A squirrel and a nut
community
what organisms help each other
food web
food web

8. The exchange of gasses between producers and consumers
carbon dioxide and oxygen cycle
3 groups that make up the energy pyramid
Step 1 of the carbon dioxide and oxygen cycle
food chain

9. Plant - grass - flower - trees
ecosystem
list 6 ecosystems
4 types of producers
purpose of decomposers

10. Carbon dioxide
what gas do people breathe out
purpose of decomposers
host
producer

11. Consumers take in the oxygen that the producers make
carbon dioxide and oxygen cycle
what organisms help each other
habitat
Step 2 of the carbon dioxide and oxygen cycle

12. An organism that eats the producer and other consumers
parasite
consumer
the ONE thing all food that we eat comes from
where is one organism harmed and one helped?

13. They all die
if the part of the food chain is missing...then what happens?
where is one organism harmed and one helped?
carbon dioxide and oxygen cycle
energy pyramid

14. Consumers give off carbon dioxide
difference between producers and consumers
Step 3 of the carbon dioxide and oxygen cycle
population
Step 4 of the carbon dioxide and oxygen cycle

15. We need them because they break down dead plants and animals
host
the ONE thing all food that we eat comes from
purpose of decomposers
the gas people breathe in...

16. The organism a parasite lives on or in
Step 1 of the carbon dioxide and oxygen cycle
host
where is one organism harmed and one helped?
4 types of producers

17. A tapeworm and a human
Step 1 of the carbon dioxide and oxygen cycle
food web
where is one organism harmed and one helped?
4 types of consumers

18. An organism that makes it's own food
producer
host
what organisms help each other
ecosystem

19. All the living things in an ecosystem
decomposer
habitat
community
food chain

20. Oxygen
Step 2 of the carbon dioxide and oxygen cycle
the gas people breathe in...
food web
carbon dioxide and oxygen cycle

21. All the living and non living things in an environment
Step 1 of the carbon dioxide and oxygen cycle
ecosystem
decomposer
consumer

22. Producers take in carbon dioxide from the consumer
decomposer
what gas do people breathe out
5 things all living things need to survive
Step 4 of the carbon dioxide and oxygen cycle

23. Several food chains that are connected
host
carbon dioxide and oxygen cycle
decomposer
food web

24. Forest....plants and algae

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25. A series of organisims that depend on another for food
Step 3 of the carbon dioxide and oxygen cycle
what organisms help each other
food chain
5 things all living things need to survive

26. A squirrel and a nut
what organisms help each other
habitat
where is one organism harmed and one helped?
food chain

27. A tapeworm and a human
Step 4 of the carbon dioxide and oxygen cycle
where is one organism harmed and one helped?
host
if the part of the food chain is missing...then what happens?

28. Producers give off oxygen as the make their own food
Step 1 of the carbon dioxide and oxygen cycle
purpose of decomposers
energy pyramid
where is one organism harmed and one helped?

29. An organism that lives in or on another organism
what organisms help each other
producer
parasite
community

30. All the members of a certain type of a living thing in an area
population
food chain
what gas do people breathe out
3 groups that make up the energy pyramid

31. Tundra - dessert - rain forest - ocean - pond - lake
list 6 ecosystems
Step 3 of the carbon dioxide and oxygen cycle
the gas people breathe in...
parasite

32. The place where a plant or animal naturally lives or grows
Step 3 of the carbon dioxide and oxygen cycle
habitat
energy pyramid
Step 2 of the carbon dioxide and oxygen cycle

33. Producers take in carbon dioxide from the consumer
4 types of consumers
Step 3 of the carbon dioxide and oxygen cycle
Step 4 of the carbon dioxide and oxygen cycle
consumer

34. Consumers give off carbon dioxide
5 things all living things need to survive
difference between producers and consumers
4 types of producers
Step 3 of the carbon dioxide and oxygen cycle

35. Tiger - bear - fox - wolf
parasite
energy pyramid
4 types of consumers
5 things all living things need to survive

36. The place where a plant or animal naturally lives or grows
habitat
Step 2 of the carbon dioxide and oxygen cycle
carbon dioxide and oxygen cycle
decomposer

37. An organism that eats the producer and other consumers
consumer
if the part of the food chain is missing...then what happens?
what organisms help each other
where is one organism harmed and one helped?

38. Producers give off oxygen as the make their own food
Step 1 of the carbon dioxide and oxygen cycle
purpose of decomposers
4 types of consumers
Step 2 of the carbon dioxide and oxygen cycle

39. Air - water - sun - shelter - food
community
the ONE thing all food that we eat comes from
5 things all living things need to survive
food web

40. The organism a parasite lives on or in
Step 3 of the carbon dioxide and oxygen cycle
host
4 types of consumers
what gas do people breathe out

41. An organism that breaks down plant and animal material
decomposer
producer
3 groups that make up the energy pyramid
carbon dioxide and oxygen cycle

42. Air - water - sun - shelter - food
purpose of decomposers
Step 4 of the carbon dioxide and oxygen cycle
Step 2 of the carbon dioxide and oxygen cycle
5 things all living things need to survive

43. Carbon dioxide
list 6 ecosystems
what gas do people breathe out
producer
4 types of consumers

44. The exchange of gasses between producers and consumers
carbon dioxide and oxygen cycle
ecosystem
purpose of decomposers
Step 3 of the carbon dioxide and oxygen cycle

45. Oxygen
where the world's oxygen supply comes from
the gas people breathe in...
carbon dioxide and oxygen cycle
where is one organism harmed and one helped?

46. All the living things in an ecosystem
decomposer
difference between producers and consumers
community
population

47. An organism that breaks down plant and animal material
what organisms help each other
population
decomposer
consumer

48. A diagram that shows how energy in an ecosystem is used
ecosystem
energy pyramid
community
what gas do people breathe out

49. An organism that makes it's own food
producer
Step 4 of the carbon dioxide and oxygen cycle
purpose of decomposers
where the world's oxygen supply comes from

50. A diagram that shows how energy in an ecosystem is used
3 groups that make up the energy pyramid
purpose of decomposers
difference between producers and consumers
energy pyramid