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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. A squirrel and a nut
population
what organisms help each other
food chain
list 6 ecosystems

2. All the living and non living things in an environment
ecosystem
food web
5 things all living things need to survive
difference between producers and consumers

3. Plant - grass - flower - trees
carbon dioxide and oxygen cycle
decomposer
Step 2 of the carbon dioxide and oxygen cycle
4 types of producers

4. An organism that eats the producer and other consumers
what gas do people breathe out
energy pyramid
list 6 ecosystems
consumer

5. We need them because they break down dead plants and animals
energy pyramid
what organisms help each other
purpose of decomposers
where the world's oxygen supply comes from

6. Plants
purpose of decomposers
the ONE thing all food that we eat comes from
4 types of consumers
parasite

7. Air - water - sun - shelter - food
food chain
4 types of producers
Step 1 of the carbon dioxide and oxygen cycle
5 things all living things need to survive

8. Tundra - dessert - rain forest - ocean - pond - lake
habitat
list 6 ecosystems
3 groups that make up the energy pyramid
what gas do people breathe out

9. Carbon dioxide
what gas do people breathe out
list 6 ecosystems
list 6 ecosystems
difference between producers and consumers

10. Forest....plants and algae

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11. A series of organisims that depend on another for food
food chain
4 types of consumers
energy pyramid
5 things all living things need to survive

12. A tapeworm and a human
4 types of consumers
decomposer
food web
where is one organism harmed and one helped?

13. Oxygen
difference between producers and consumers
producer
the gas people breathe in...
5 things all living things need to survive

14. An organism that lives in or on another organism
parasite
habitat
producer
energy pyramid

15. A tapeworm and a human
3 groups that make up the energy pyramid
the ONE thing all food that we eat comes from
where the world's oxygen supply comes from
where is one organism harmed and one helped?

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

17. They all die
3 groups that make up the energy pyramid
what organisms help each other
Step 4 of the carbon dioxide and oxygen cycle
if the part of the food chain is missing...then what happens?

18. Air - water - sun - shelter - food
5 things all living things need to survive
producer
what organisms help each other
food web

19. Plants
the ONE thing all food that we eat comes from
habitat
where the world's oxygen supply comes from
where is one organism harmed and one helped?

20. A diagram that shows how energy in an ecosystem is used
if the part of the food chain is missing...then what happens?
where the world's oxygen supply comes from
4 types of producers
energy pyramid

21. Consumers give off carbon dioxide
4 types of consumers
Step 3 of the carbon dioxide and oxygen cycle
habitat
food chain

22. Forest....plants and algae

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23. All the living things in an ecosystem
community
where is one organism harmed and one helped?
4 types of consumers
Step 2 of the carbon dioxide and oxygen cycle

24. The organism a parasite lives on or in
host
difference between producers and consumers
food web
where the world's oxygen supply comes from

25. The exchange of gasses between producers and consumers
Step 1 of the carbon dioxide and oxygen cycle
if the part of the food chain is missing...then what happens?
food chain
carbon dioxide and oxygen cycle

26. All the living and non living things in an environment
purpose of decomposers
ecosystem
5 things all living things need to survive
3 groups that make up the energy pyramid

27. Producers - plant eaters - meat eaters
the gas people breathe in...
host
4 types of producers
3 groups that make up the energy pyramid

28. Consumers give off carbon dioxide
Step 3 of the carbon dioxide and oxygen cycle
population
what gas do people breathe out
list 6 ecosystems

29. Consumers eat producers and other consumers. Producers make their own food
producer
where the world's oxygen supply comes from
difference between producers and consumers
Step 4 of the carbon dioxide and oxygen cycle

30. Carbon dioxide
what gas do people breathe out
the gas people breathe in...
community
5 things all living things need to survive

31. Several food chains that are connected
carbon dioxide and oxygen cycle
Step 3 of the carbon dioxide and oxygen cycle
food web
if the part of the food chain is missing...then what happens?

32. Several food chains that are connected
what gas do people breathe out
food web
list 6 ecosystems
the ONE thing all food that we eat comes from

33. They all die
if the part of the food chain is missing...then what happens?
purpose of decomposers
4 types of producers
the ONE thing all food that we eat comes from

34. Tiger - bear - fox - wolf
4 types of consumers
what organisms help each other
host
producer

35. Oxygen
purpose of decomposers
the gas people breathe in...
food web
4 types of producers

36. The place where a plant or animal naturally lives or grows
habitat
Step 1 of the carbon dioxide and oxygen cycle
food web
list 6 ecosystems

37. The place where a plant or animal naturally lives or grows
energy pyramid
where is one organism harmed and one helped?
population
habitat

38. All the living things in an ecosystem
community
Step 1 of the carbon dioxide and oxygen cycle
purpose of decomposers
Step 2 of the carbon dioxide and oxygen cycle

39. All the members of a certain type of a living thing in an area
4 types of consumers
food chain
population
food web

40. An organism that breaks down plant and animal material
Step 1 of the carbon dioxide and oxygen cycle
Step 4 of the carbon dioxide and oxygen cycle
where the world's oxygen supply comes from
decomposer

41. Consumers eat producers and other consumers. Producers make their own food
consumer
4 types of producers
host
difference between producers and consumers

42. An organism that eats the producer and other consumers
difference between producers and consumers
4 types of consumers
consumer
list 6 ecosystems

43. All the members of a certain type of a living thing in an area
population
producer
food web
food chain

44. Producers take in carbon dioxide from the consumer
Step 4 of the carbon dioxide and oxygen cycle
the ONE thing all food that we eat comes from
food chain
Step 3 of the carbon dioxide and oxygen cycle

45. An organism that makes it's own food
Step 4 of the carbon dioxide and oxygen cycle
Step 4 of the carbon dioxide and oxygen cycle
producer
4 types of consumers

46. We need them because they break down dead plants and animals
food chain
purpose of decomposers
where is one organism harmed and one helped?
community

47. Tundra - dessert - rain forest - ocean - pond - lake
energy pyramid
host
energy pyramid
list 6 ecosystems

48. A diagram that shows how energy in an ecosystem is used
ecosystem
host
energy pyramid
community

49. Producers - plant eaters - meat eaters
energy pyramid
carbon dioxide and oxygen cycle
3 groups that make up the energy pyramid
energy pyramid

50. The exchange of gasses between producers and consumers
community
parasite
population
carbon dioxide and oxygen cycle