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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. An organism that makes it's own food
5 things all living things need to survive
what gas do people breathe out
ecosystem
producer

2. Several food chains that are connected
food web
decomposer
Step 2 of the carbon dioxide and oxygen cycle
where is one organism harmed and one helped?

3. A squirrel and a nut
what organisms help each other
5 things all living things need to survive
parasite
where is one organism harmed and one helped?

4. Tiger - bear - fox - wolf
food web
producer
purpose of decomposers
4 types of consumers

5. All the living things in an ecosystem
community
consumer
where the world's oxygen supply comes from
purpose of decomposers

6. Producers - plant eaters - meat eaters
community
what gas do people breathe out
3 groups that make up the energy pyramid
what organisms help each other

7. A series of organisims that depend on another for food
5 things all living things need to survive
what gas do people breathe out
3 groups that make up the energy pyramid
food chain

8. The organism a parasite lives on or in
decomposer
host
consumer
habitat

9. All the living and non living things in an environment
producer
ecosystem
what organisms help each other
list 6 ecosystems

10. They all die
3 groups that make up the energy pyramid
difference between producers and consumers
if the part of the food chain is missing...then what happens?
list 6 ecosystems

11. Producers take in carbon dioxide from the consumer
difference between producers and consumers
3 groups that make up the energy pyramid
Step 4 of the carbon dioxide and oxygen cycle
host

12. A squirrel and a nut
what gas do people breathe out
consumer
what organisms help each other
where is one organism harmed and one helped?

13. A diagram that shows how energy in an ecosystem is used
purpose of decomposers
habitat
energy pyramid
population

14. A diagram that shows how energy in an ecosystem is used
energy pyramid
4 types of producers
consumer
host

15. The place where a plant or animal naturally lives or grows
the ONE thing all food that we eat comes from
habitat
consumer
purpose of decomposers

16. Consumers take in the oxygen that the producers make
Step 2 of the carbon dioxide and oxygen cycle
where is one organism harmed and one helped?
4 types of consumers
parasite

17. A series of organisims that depend on another for food
5 things all living things need to survive
the gas people breathe in...
Step 1 of the carbon dioxide and oxygen cycle
food chain

18. Producers give off oxygen as the make their own food
carbon dioxide and oxygen cycle
Step 4 of the carbon dioxide and oxygen cycle
what gas do people breathe out
Step 1 of the carbon dioxide and oxygen cycle

19. An organism that eats the producer and other consumers
consumer
food web
3 groups that make up the energy pyramid
5 things all living things need to survive

20. Several food chains that are connected
where the world's oxygen supply comes from
habitat
food web
what organisms help each other

21. Oxygen
where the world's oxygen supply comes from
producer
parasite
the gas people breathe in...

22. An organism that eats the producer and other consumers
purpose of decomposers
community
host
consumer

23. An organism that lives in or on another organism
parasite
3 groups that make up the energy pyramid
if the part of the food chain is missing...then what happens?
where the world's oxygen supply comes from

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

25. Forest....plants and algae

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

27. They all die
food chain
if the part of the food chain is missing...then what happens?
host
5 things all living things need to survive

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

29. An organism that lives in or on another organism
producer
the ONE thing all food that we eat comes from
parasite
carbon dioxide and oxygen cycle

30. An organism that breaks down plant and animal material
consumer
difference between producers and consumers
list 6 ecosystems
decomposer

31. Consumers eat producers and other consumers. Producers make their own food
4 types of consumers
what organisms help each other
consumer
difference between producers and consumers

32. We need them because they break down dead plants and animals
5 things all living things need to survive
purpose of decomposers
decomposer
Step 4 of the carbon dioxide and oxygen cycle

33. The exchange of gasses between producers and consumers
consumer
Step 3 of the carbon dioxide and oxygen cycle
carbon dioxide and oxygen cycle
difference between producers and consumers

34. Tundra - dessert - rain forest - ocean - pond - lake
the gas people breathe in...
list 6 ecosystems
host
where the world's oxygen supply comes from

35. An organism that breaks down plant and animal material
3 groups that make up the energy pyramid
Step 1 of the carbon dioxide and oxygen cycle
decomposer
what gas do people breathe out

36. Plants
the ONE thing all food that we eat comes from
Step 4 of the carbon dioxide and oxygen cycle
3 groups that make up the energy pyramid
where the world's oxygen supply comes from

37. Air - water - sun - shelter - food
5 things all living things need to survive
food web
purpose of decomposers
4 types of producers

38. Consumers give off carbon dioxide
habitat
energy pyramid
Step 1 of the carbon dioxide and oxygen cycle
Step 3 of the carbon dioxide and oxygen cycle

39. Forest....plants and algae

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40. Producers give off oxygen as the make their own food
difference between producers and consumers
where the world's oxygen supply comes from
where the world's oxygen supply comes from
Step 1 of the carbon dioxide and oxygen cycle

41. Plants
producer
parasite
the ONE thing all food that we eat comes from
Step 3 of the carbon dioxide and oxygen cycle

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

43. Consumers take in the oxygen that the producers make
what gas do people breathe out
list 6 ecosystems
Step 2 of the carbon dioxide and oxygen cycle
the gas people breathe in...

44. Carbon dioxide
ecosystem
what gas do people breathe out
5 things all living things need to survive
carbon dioxide and oxygen cycle

45. All the members of a certain type of a living thing in an area
3 groups that make up the energy pyramid
if the part of the food chain is missing...then what happens?
decomposer
population

46. Tundra - dessert - rain forest - ocean - pond - lake
decomposer
host
host
list 6 ecosystems

47. Consumers eat producers and other consumers. Producers make their own food
host
5 things all living things need to survive
5 things all living things need to survive
difference between producers and consumers

48. Producers take in carbon dioxide from the consumer
parasite
Step 4 of the carbon dioxide and oxygen cycle
list 6 ecosystems
population

49. Consumers give off carbon dioxide
where the world's oxygen supply comes from
Step 3 of the carbon dioxide and oxygen cycle
host
4 types of consumers

50. A tapeworm and a human
what gas do people breathe out
where is one organism harmed and one helped?
habitat
5 things all living things need to survive