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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. Plant - grass - flower - trees
list 6 ecosystems
4 types of producers
what organisms help each other
community

2. An organism that breaks down plant and animal material
purpose of decomposers
Step 4 of the carbon dioxide and oxygen cycle
decomposer
population

3. The organism a parasite lives on or in
4 types of consumers
host
food chain
the ONE thing all food that we eat comes from

4. All the living things in an ecosystem
community
where the world's oxygen supply comes from
purpose of decomposers
list 6 ecosystems

5. Consumers give off carbon dioxide
list 6 ecosystems
Step 3 of the carbon dioxide and oxygen cycle
difference between producers and consumers
community

6. Plant - grass - flower - trees
4 types of producers
list 6 ecosystems
purpose of decomposers
where the world's oxygen supply comes from

7. Several food chains that are connected
population
3 groups that make up the energy pyramid
if the part of the food chain is missing...then what happens?
food web

8. A squirrel and a nut
energy pyramid
5 things all living things need to survive
what organisms help each other
population

9. Oxygen
what gas do people breathe out
the gas people breathe in...
purpose of decomposers
producer

10. All the members of a certain type of a living thing in an area
carbon dioxide and oxygen cycle
5 things all living things need to survive
3 groups that make up the energy pyramid
population

11. The organism a parasite lives on or in
host
ecosystem
difference between producers and consumers
producer

12. They all die
Step 2 of the carbon dioxide and oxygen cycle
where is one organism harmed and one helped?
where the world's oxygen supply comes from
if the part of the food chain is missing...then what happens?

13. Tundra - dessert - rain forest - ocean - pond - lake
the gas people breathe in...
what organisms help each other
energy pyramid
list 6 ecosystems

14. We need them because they break down dead plants and animals
ecosystem
purpose of decomposers
where the world's oxygen supply comes from
food chain

15. Consumers take in the oxygen that the producers make
habitat
difference between producers and consumers
ecosystem
Step 2 of the carbon dioxide and oxygen cycle

16. A series of organisims that depend on another for food
consumer
if the part of the food chain is missing...then what happens?
Step 2 of the carbon dioxide and oxygen cycle
food chain

17. Forest....plants and algae

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18. Producers - plant eaters - meat eaters
Step 4 of the carbon dioxide and oxygen cycle
5 things all living things need to survive
3 groups that make up the energy pyramid
food web

19. An organism that makes it's own food
producer
what gas do people breathe out
the ONE thing all food that we eat comes from
population

20. Consumers eat producers and other consumers. Producers make their own food
difference between producers and consumers
community
producer
purpose of decomposers

21. A series of organisims that depend on another for food
decomposer
difference between producers and consumers
habitat
food chain

22. A tapeworm and a human
where is one organism harmed and one helped?
5 things all living things need to survive
carbon dioxide and oxygen cycle
what gas do people breathe out

23. All the living things in an ecosystem
Step 4 of the carbon dioxide and oxygen cycle
4 types of consumers
ecosystem
community

24. Carbon dioxide
Step 3 of the carbon dioxide and oxygen cycle
carbon dioxide and oxygen cycle
what gas do people breathe out
population

25. Producers - plant eaters - meat eaters
what gas do people breathe out
3 groups that make up the energy pyramid
consumer
Step 4 of the carbon dioxide and oxygen cycle

26. All the living and non living things in an environment
where is one organism harmed and one helped?
habitat
ecosystem
Step 4 of the carbon dioxide and oxygen cycle

27. A diagram that shows how energy in an ecosystem is used
4 types of consumers
Step 4 of the carbon dioxide and oxygen cycle
energy pyramid
ecosystem

28. Air - water - sun - shelter - food
5 things all living things need to survive
consumer
population
purpose of decomposers

29. An organism that lives in or on another organism
parasite
4 types of producers
4 types of consumers
decomposer

30. Consumers give off carbon dioxide
ecosystem
Step 3 of the carbon dioxide and oxygen cycle
4 types of consumers
what organisms help each other

31. Tiger - bear - fox - wolf
where the world's oxygen supply comes from
4 types of consumers
energy pyramid
ecosystem

32. A tapeworm and a human
Step 4 of the carbon dioxide and oxygen cycle
community
where is one organism harmed and one helped?
4 types of consumers

33. Consumers take in the oxygen that the producers make
the gas people breathe in...
where is one organism harmed and one helped?
where is one organism harmed and one helped?
Step 2 of the carbon dioxide and oxygen cycle

34. Carbon dioxide
5 things all living things need to survive
what gas do people breathe out
the ONE thing all food that we eat comes from
population

35. All the members of a certain type of a living thing in an area
population
4 types of consumers
Step 3 of the carbon dioxide and oxygen cycle
producer

36. Tiger - bear - fox - wolf
4 types of consumers
purpose of decomposers
carbon dioxide and oxygen cycle
decomposer

37. The place where a plant or animal naturally lives or grows
5 things all living things need to survive
Step 2 of the carbon dioxide and oxygen cycle
food web
habitat

38. Plants
5 things all living things need to survive
Step 4 of the carbon dioxide and oxygen cycle
difference between producers and consumers
the ONE thing all food that we eat comes from

39. Producers take in carbon dioxide from the consumer
3 groups that make up the energy pyramid
Step 2 of the carbon dioxide and oxygen cycle
Step 4 of the carbon dioxide and oxygen cycle
the ONE thing all food that we eat comes from

40. A squirrel and a nut
what organisms help each other
list 6 ecosystems
producer
parasite

41. Tundra - dessert - rain forest - ocean - pond - lake
habitat
producer
decomposer
list 6 ecosystems

42. We need them because they break down dead plants and animals
parasite
purpose of decomposers
population
where is one organism harmed and one helped?

43. Plants
food chain
producer
difference between producers and consumers
the ONE thing all food that we eat comes from

44. A diagram that shows how energy in an ecosystem is used
energy pyramid
if the part of the food chain is missing...then what happens?
host
5 things all living things need to survive

45. Oxygen
the gas people breathe in...
what gas do people breathe out
the ONE thing all food that we eat comes from
Step 2 of the carbon dioxide and oxygen cycle

46. An organism that makes it's own food
3 groups that make up the energy pyramid
producer
ecosystem
habitat

47. Producers give off oxygen as the make their own food
parasite
decomposer
Step 1 of the carbon dioxide and oxygen cycle
carbon dioxide and oxygen cycle

48. All the living and non living things in an environment
5 things all living things need to survive
community
ecosystem
community

49. The exchange of gasses between producers and consumers
the ONE thing all food that we eat comes from
carbon dioxide and oxygen cycle
consumer
the gas people breathe in...

50. Producers give off oxygen as the make their own food
where is one organism harmed and one helped?
Step 1 of the carbon dioxide and oxygen cycle
list 6 ecosystems
population

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3rd Grade Science Common Core

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