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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. All the living and non living things in an environment
Step 1 of the carbon dioxide and oxygen cycle
what organisms help each other
ecosystem
community

2. Plants
food web
where the world's oxygen supply comes from
purpose of decomposers
the ONE thing all food that we eat comes from

3. Carbon dioxide
host
consumer
what gas do people breathe out
where the world's oxygen supply comes from

4. Forest....plants and algae

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5. Producers give off oxygen as the make their own food
Step 1 of the carbon dioxide and oxygen cycle
habitat
parasite
consumer

6. An organism that makes it's own food
producer
Step 3 of the carbon dioxide and oxygen cycle
3 groups that make up the energy pyramid
ecosystem

7. Producers - plant eaters - meat eaters
Step 1 of the carbon dioxide and oxygen cycle
the gas people breathe in...
3 groups that make up the energy pyramid
what organisms help each other

8. Several food chains that are connected
Step 4 of the carbon dioxide and oxygen cycle
food web
where is one organism harmed and one helped?
community

9. The place where a plant or animal naturally lives or grows
3 groups that make up the energy pyramid
Step 1 of the carbon dioxide and oxygen cycle
consumer
habitat

10. We need them because they break down dead plants and animals
purpose of decomposers
3 groups that make up the energy pyramid
difference between producers and consumers
difference between producers and consumers

11. Oxygen
if the part of the food chain is missing...then what happens?
3 groups that make up the energy pyramid
the gas people breathe in...
list 6 ecosystems

12. Tundra - dessert - rain forest - ocean - pond - lake
consumer
host
consumer
list 6 ecosystems

13. An organism that lives in or on another organism
food web
parasite
what gas do people breathe out
where the world's oxygen supply comes from

14. Air - water - sun - shelter - food
producer
5 things all living things need to survive
list 6 ecosystems
what gas do people breathe out

15. Tiger - bear - fox - wolf
4 types of consumers
if the part of the food chain is missing...then what happens?
consumer
Step 2 of the carbon dioxide and oxygen cycle

16. Tiger - bear - fox - wolf
the ONE thing all food that we eat comes from
energy pyramid
4 types of consumers
Step 3 of the carbon dioxide and oxygen cycle

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

18. Consumers give off carbon dioxide
3 groups that make up the energy pyramid
Step 3 of the carbon dioxide and oxygen cycle
what gas do people breathe out
what gas do people breathe out

19. We need them because they break down dead plants and animals
purpose of decomposers
habitat
carbon dioxide and oxygen cycle
difference between producers and consumers

20. Tundra - dessert - rain forest - ocean - pond - lake
4 types of consumers
list 6 ecosystems
host
population

21. A series of organisims that depend on another for food
habitat
decomposer
community
food chain

22. Forest....plants and algae

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23. A diagram that shows how energy in an ecosystem is used
energy pyramid
4 types of consumers
if the part of the food chain is missing...then what happens?
carbon dioxide and oxygen cycle

24. A series of organisims that depend on another for food
host
producer
food chain
where is one organism harmed and one helped?

25. Producers - plant eaters - meat eaters
3 groups that make up the energy pyramid
list 6 ecosystems
4 types of producers
food web

26. They all die
habitat
list 6 ecosystems
if the part of the food chain is missing...then what happens?
purpose of decomposers

27. A squirrel and a nut
if the part of the food chain is missing...then what happens?
food chain
what organisms help each other
producer

28. Plant - grass - flower - trees
population
host
4 types of producers
consumer

29. All the living things in an ecosystem
community
food chain
Step 4 of the carbon dioxide and oxygen cycle
Step 1 of the carbon dioxide and oxygen cycle

30. Consumers eat producers and other consumers. Producers make their own food
difference between producers and consumers
decomposer
producer
4 types of producers

31. All the members of a certain type of a living thing in an area
4 types of producers
population
list 6 ecosystems
habitat

32. An organism that lives in or on another organism
where is one organism harmed and one helped?
carbon dioxide and oxygen cycle
parasite
Step 1 of the carbon dioxide and oxygen cycle

33. The exchange of gasses between producers and consumers
Step 2 of the carbon dioxide and oxygen cycle
difference between producers and consumers
3 groups that make up the energy pyramid
carbon dioxide and oxygen cycle

34. A tapeworm and a human
ecosystem
where is one organism harmed and one helped?
Step 4 of the carbon dioxide and oxygen cycle
Step 1 of the carbon dioxide and oxygen cycle

35. Producers take in carbon dioxide from the consumer
Step 4 of the carbon dioxide and oxygen cycle
the gas people breathe in...
parasite
food chain

36. An organism that breaks down plant and animal material
where is one organism harmed and one helped?
3 groups that make up the energy pyramid
decomposer
where is one organism harmed and one helped?

37. Producers give off oxygen as the make their own food
where the world's oxygen supply comes from
Step 1 of the carbon dioxide and oxygen cycle
if the part of the food chain is missing...then what happens?
consumer

38. A tapeworm and a human
host
parasite
where the world's oxygen supply comes from
where is one organism harmed and one helped?

39. Several food chains that are connected
Step 3 of the carbon dioxide and oxygen cycle
food web
carbon dioxide and oxygen cycle
Step 2 of the carbon dioxide and oxygen cycle

40. Plant - grass - flower - trees
Step 2 of the carbon dioxide and oxygen cycle
food web
population
4 types of producers

41. All the living and non living things in an environment
ecosystem
carbon dioxide and oxygen cycle
Step 2 of the carbon dioxide and oxygen cycle
what organisms help each other

42. Consumers take in the oxygen that the producers make
host
decomposer
difference between producers and consumers
Step 2 of the carbon dioxide and oxygen cycle

43. The place where a plant or animal naturally lives or grows
habitat
Step 3 of the carbon dioxide and oxygen cycle
what organisms help each other
population

44. An organism that eats the producer and other consumers
the gas people breathe in...
energy pyramid
the gas people breathe in...
consumer

45. Consumers take in the oxygen that the producers make
Step 2 of the carbon dioxide and oxygen cycle
Step 4 of the carbon dioxide and oxygen cycle
decomposer
food web

46. Carbon dioxide
the ONE thing all food that we eat comes from
what gas do people breathe out
producer
producer

47. An organism that makes it's own food
what organisms help each other
producer
what gas do people breathe out
the ONE thing all food that we eat comes from

48. They all die
if the part of the food chain is missing...then what happens?
food web
habitat
consumer

49. The exchange of gasses between producers and consumers
3 groups that make up the energy pyramid
purpose of decomposers
difference between producers and consumers
carbon dioxide and oxygen cycle

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