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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. Several food chains that are connected
food web
Step 2 of the carbon dioxide and oxygen cycle
if the part of the food chain is missing...then what happens?
5 things all living things need to survive

2. Producers - plant eaters - meat eaters
what gas do people breathe out
carbon dioxide and oxygen cycle
if the part of the food chain is missing...then what happens?
3 groups that make up the energy pyramid

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

4. Tundra - dessert - rain forest - ocean - pond - lake
list 6 ecosystems
where the world's oxygen supply comes from
carbon dioxide and oxygen cycle
difference between producers and consumers

5. The exchange of gasses between producers and consumers
host
carbon dioxide and oxygen cycle
3 groups that make up the energy pyramid
what gas do people breathe out

6. A tapeworm and a human
carbon dioxide and oxygen cycle
where is one organism harmed and one helped?
energy pyramid
difference between producers and consumers

7. All the members of a certain type of a living thing in an area
if the part of the food chain is missing...then what happens?
if the part of the food chain is missing...then what happens?
host
population

8. Oxygen
difference between producers and consumers
where is one organism harmed and one helped?
the gas people breathe in...
if the part of the food chain is missing...then what happens?

9. An organism that eats the producer and other consumers
parasite
what gas do people breathe out
Step 2 of the carbon dioxide and oxygen cycle
consumer

10. Forest....plants and algae

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11. Producers give off oxygen as the make their own food
the gas people breathe in...
Step 1 of the carbon dioxide and oxygen cycle
food chain
population

12. Tiger - bear - fox - wolf
4 types of consumers
ecosystem
where is one organism harmed and one helped?
community

13. The place where a plant or animal naturally lives or grows
population
habitat
list 6 ecosystems
community

14. The place where a plant or animal naturally lives or grows
food web
5 things all living things need to survive
energy pyramid
habitat

15. A diagram that shows how energy in an ecosystem is used
community
energy pyramid
difference between producers and consumers
population

16. Carbon dioxide
4 types of producers
the gas people breathe in...
Step 3 of the carbon dioxide and oxygen cycle
what gas do people breathe out

17. Plants
community
the ONE thing all food that we eat comes from
habitat
ecosystem

18. A series of organisims that depend on another for food
list 6 ecosystems
the ONE thing all food that we eat comes from
purpose of decomposers
food chain

19. An organism that lives in or on another organism
carbon dioxide and oxygen cycle
consumer
parasite
food web

20. Consumers eat producers and other consumers. Producers make their own food
difference between producers and consumers
list 6 ecosystems
4 types of producers
5 things all living things need to survive

21. Several food chains that are connected
purpose of decomposers
food web
parasite
consumer

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

23. Carbon dioxide
parasite
3 groups that make up the energy pyramid
what organisms help each other
what gas do people breathe out

24. An organism that eats the producer and other consumers
community
consumer
decomposer
5 things all living things need to survive

25. A diagram that shows how energy in an ecosystem is used
energy pyramid
where the world's oxygen supply comes from
producer
5 things all living things need to survive

26. Plant - grass - flower - trees
4 types of producers
where is one organism harmed and one helped?
carbon dioxide and oxygen cycle
5 things all living things need to survive

27. An organism that makes it's own food
producer
Step 4 of the carbon dioxide and oxygen cycle
host
where is one organism harmed and one helped?

28. Oxygen
the gas people breathe in...
habitat
4 types of producers
4 types of consumers

29. They all die
difference between producers and consumers
if the part of the food chain is missing...then what happens?
4 types of consumers
community

30. Air - water - sun - shelter - food
carbon dioxide and oxygen cycle
5 things all living things need to survive
Step 2 of the carbon dioxide and oxygen cycle
Step 3 of the carbon dioxide and oxygen cycle

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

32. Plant - grass - flower - trees
Step 4 of the carbon dioxide and oxygen cycle
the ONE thing all food that we eat comes from
4 types of producers
food web

33. An organism that breaks down plant and animal material
the ONE thing all food that we eat comes from
food web
if the part of the food chain is missing...then what happens?
decomposer

34. Forest....plants and algae

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35. Producers - plant eaters - meat eaters
4 types of consumers
3 groups that make up the energy pyramid
producer
food web

36. A squirrel and a nut
what organisms help each other
food chain
4 types of consumers
Step 1 of the carbon dioxide and oxygen cycle

37. A tapeworm and a human
habitat
population
the gas people breathe in...
where is one organism harmed and one helped?

38. Consumers give off carbon dioxide
Step 3 of the carbon dioxide and oxygen cycle
decomposer
3 groups that make up the energy pyramid
ecosystem

39. We need them because they break down dead plants and animals
Step 1 of the carbon dioxide and oxygen cycle
purpose of decomposers
community
Step 2 of the carbon dioxide and oxygen cycle

40. An organism that breaks down plant and animal material
3 groups that make up the energy pyramid
population
decomposer
5 things all living things need to survive

41. A series of organisims that depend on another for food
food chain
population
what organisms help each other
5 things all living things need to survive

42. The organism a parasite lives on or in
list 6 ecosystems
host
carbon dioxide and oxygen cycle
3 groups that make up the energy pyramid

43. Consumers give off carbon dioxide
host
Step 4 of the carbon dioxide and oxygen cycle
Step 3 of the carbon dioxide and oxygen cycle
food chain

44. An organism that lives in or on another organism
the gas people breathe in...
difference between producers and consumers
parasite
4 types of consumers

45. The organism a parasite lives on or in
decomposer
host
4 types of consumers
difference between producers and consumers

46. All the living things in an ecosystem
host
ecosystem
community
Step 4 of the carbon dioxide and oxygen cycle

47. All the living things in an ecosystem
Step 3 of the carbon dioxide and oxygen cycle
community
what gas do people breathe out
consumer

48. An organism that makes it's own food
3 groups that make up the energy pyramid
producer
decomposer
what organisms help each other

49. Consumers take in the oxygen that the producers make
the ONE thing all food that we eat comes from
5 things all living things need to survive
where the world's oxygen supply comes from
Step 2 of the carbon dioxide and oxygen cycle

50. Plants
list 6 ecosystems
Step 4 of the carbon dioxide and oxygen cycle
the ONE thing all food that we eat comes from
4 types of consumers