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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. Consumers take in the oxygen that the producers make
Step 2 of the carbon dioxide and oxygen cycle
Step 1 of the carbon dioxide and oxygen cycle
list 6 ecosystems
producer

2. An organism that eats the producer and other consumers
population
consumer
ecosystem
population

3. Several food chains that are connected
decomposer
what gas do people breathe out
food web
Step 3 of the carbon dioxide and oxygen cycle

4. All the members of a certain type of a living thing in an area
population
where is one organism harmed and one helped?
parasite
producer

5. The organism a parasite lives on or in
community
host
where is one organism harmed and one helped?
what gas do people breathe out

6. An organism that lives in or on another organism
what organisms help each other
decomposer
population
parasite

7. An organism that eats the producer and other consumers
decomposer
host
ecosystem
consumer

8. Oxygen
5 things all living things need to survive
the gas people breathe in...
food chain
what gas do people breathe out

9. A series of organisims that depend on another for food
decomposer
food chain
habitat
3 groups that make up the energy pyramid

10. Consumers eat producers and other consumers. Producers make their own food
habitat
ecosystem
3 groups that make up the energy pyramid
difference between producers and consumers

11. Plant - grass - flower - trees
4 types of producers
what organisms help each other
decomposer
where the world's oxygen supply comes from

12. A diagram that shows how energy in an ecosystem is used
community
purpose of decomposers
difference between producers and consumers
energy pyramid

13. Plants
the ONE thing all food that we eat comes from
3 groups that make up the energy pyramid
food web
community

14. Tiger - bear - fox - wolf
community
ecosystem
4 types of consumers
purpose of decomposers

15. Plants
the ONE thing all food that we eat comes from
food chain
habitat
population

16. All the living things in an ecosystem
the gas people breathe in...
community
if the part of the food chain is missing...then what happens?
parasite

17. Tiger - bear - fox - wolf
4 types of consumers
where is one organism harmed and one helped?
purpose of decomposers
list 6 ecosystems

18. The place where a plant or animal naturally lives or grows
what gas do people breathe out
habitat
population
3 groups that make up the energy pyramid

19. Several food chains that are connected
consumer
where the world's oxygen supply comes from
parasite
food web

20. Plant - grass - flower - trees
4 types of producers
population
energy pyramid
difference between producers and consumers

21. An organism that breaks down plant and animal material
Step 2 of the carbon dioxide and oxygen cycle
what organisms help each other
community
decomposer

22. The exchange of gasses between producers and consumers
difference between producers and consumers
carbon dioxide and oxygen cycle
host
where the world's oxygen supply comes from

23. All the living and non living things in an environment
producer
ecosystem
consumer
carbon dioxide and oxygen cycle

24. We need them because they break down dead plants and animals
purpose of decomposers
where the world's oxygen supply comes from
Step 1 of the carbon dioxide and oxygen cycle
producer

25. Producers - plant eaters - meat eaters
energy pyramid
5 things all living things need to survive
where is one organism harmed and one helped?
3 groups that make up the energy pyramid

26. The place where a plant or animal naturally lives or grows
population
habitat
if the part of the food chain is missing...then what happens?
5 things all living things need to survive

27. Producers give off oxygen as the make their own food
what organisms help each other
5 things all living things need to survive
food chain
Step 1 of the carbon dioxide and oxygen cycle

28. An organism that lives in or on another organism
parasite
Step 4 of the carbon dioxide and oxygen cycle
ecosystem
food chain

29. Forest....plants and algae

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30. Consumers eat producers and other consumers. Producers make their own food
difference between producers and consumers
where is one organism harmed and one helped?
Step 3 of the carbon dioxide and oxygen cycle
purpose of decomposers

31. They all die
if the part of the food chain is missing...then what happens?
food web
where the world's oxygen supply comes from
difference between producers and consumers

32. Air - water - sun - shelter - food
food web
5 things all living things need to survive
if the part of the food chain is missing...then what happens?
the gas people breathe in...

33. Oxygen
the gas people breathe in...
3 groups that make up the energy pyramid
the ONE thing all food that we eat comes from
4 types of consumers

34. The exchange of gasses between producers and consumers
Step 4 of the carbon dioxide and oxygen cycle
carbon dioxide and oxygen cycle
food web
community

35. Forest....plants and algae

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36. Consumers give off carbon dioxide
Step 4 of the carbon dioxide and oxygen cycle
Step 3 of the carbon dioxide and oxygen cycle
carbon dioxide and oxygen cycle
the gas people breathe in...

37. Air - water - sun - shelter - food
the ONE thing all food that we eat comes from
where is one organism harmed and one helped?
5 things all living things need to survive
difference between producers and consumers

38. A squirrel and a nut
population
carbon dioxide and oxygen cycle
4 types of producers
what organisms help each other

39. They all die
energy pyramid
4 types of consumers
if the part of the food chain is missing...then what happens?
ecosystem

40. Producers take in carbon dioxide from the consumer
Step 4 of the carbon dioxide and oxygen cycle
list 6 ecosystems
producer
carbon dioxide and oxygen cycle

41. Consumers take in the oxygen that the producers make
if the part of the food chain is missing...then what happens?
ecosystem
purpose of decomposers
Step 2 of the carbon dioxide and oxygen cycle

42. Producers take in carbon dioxide from the consumer
Step 4 of the carbon dioxide and oxygen cycle
what organisms help each other
energy pyramid
4 types of producers

43. All the living things in an ecosystem
where is one organism harmed and one helped?
community
Step 1 of the carbon dioxide and oxygen cycle
host

44. All the living and non living things in an environment
if the part of the food chain is missing...then what happens?
ecosystem
host
energy pyramid

45. An organism that breaks down plant and animal material
3 groups that make up the energy pyramid
decomposer
the gas people breathe in...
3 groups that make up the energy pyramid

46. All the members of a certain type of a living thing in an area
energy pyramid
population
what organisms help each other
ecosystem

47. A diagram that shows how energy in an ecosystem is used
purpose of decomposers
5 things all living things need to survive
energy pyramid
5 things all living things need to survive

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

49. A squirrel and a nut
food chain
if the part of the food chain is missing...then what happens?
what organisms help each other
what gas do people breathe out

50. Producers - plant eaters - meat eaters
community
Step 1 of the carbon dioxide and oxygen cycle
3 groups that make up the energy pyramid
energy pyramid