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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 series of organisims that depend on another for food
food chain
carbon dioxide and oxygen cycle
food web
Step 2 of the carbon dioxide and oxygen cycle

2. They all die
what organisms help each other
the gas people breathe in...
if the part of the food chain is missing...then what happens?
list 6 ecosystems

3. Air - water - sun - shelter - food
Step 2 of the carbon dioxide and oxygen cycle
3 groups that make up the energy pyramid
host
5 things all living things need to survive

4. Consumers take in the oxygen that the producers make
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
habitat

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

6. A series of organisims that depend on another for food
parasite
habitat
decomposer
food chain

7. All the members of a certain type of a living thing in an area
Step 1 of the carbon dioxide and oxygen cycle
community
population
what organisms help each other

8. The place where a plant or animal naturally lives or grows
habitat
Step 4 of the carbon dioxide and oxygen cycle
population
5 things all living things need to survive

9. Several food chains that are connected
difference between producers and consumers
Step 2 of the carbon dioxide and oxygen cycle
food web
4 types of consumers

10. We need them because they break down dead plants and animals
habitat
Step 4 of the carbon dioxide and oxygen cycle
purpose of decomposers
energy pyramid

11. They all die
if the part of the food chain is missing...then what happens?
4 types of consumers
habitat
Step 1 of the carbon dioxide and oxygen cycle

12. Plant - grass - flower - trees
3 groups that make up the energy pyramid
food web
food web
4 types of producers

13. Producers give off oxygen as the make their own food
Step 2 of the carbon dioxide and oxygen cycle
consumer
food chain
Step 1 of the carbon dioxide and oxygen cycle

14. Consumers take in the oxygen that the producers make
where the world's oxygen supply comes from
if the part of the food chain is missing...then what happens?
Step 2 of the carbon dioxide and oxygen cycle
4 types of consumers

15. A squirrel and a nut
parasite
what organisms help each other
purpose of decomposers
population

16. Producers give off oxygen as the make their own food
3 groups that make up the energy pyramid
food web
energy pyramid
Step 1 of the carbon dioxide and oxygen cycle

17. All the living and non living things in an environment
Step 1 of the carbon dioxide and oxygen cycle
4 types of consumers
ecosystem
Step 2 of the carbon dioxide and oxygen cycle

18. Several food chains that are connected
food web
decomposer
purpose of decomposers
what organisms help each other

19. Producers take in carbon dioxide from the consumer
producer
energy pyramid
Step 4 of the carbon dioxide and oxygen cycle
community

20. Plants
energy pyramid
habitat
the ONE thing all food that we eat comes from
what organisms help each other

21. Oxygen
community
the gas people breathe in...
energy pyramid
population

22. Consumers give off carbon dioxide
energy pyramid
Step 3 of the carbon dioxide and oxygen cycle
3 groups that make up the energy pyramid
food web

23. A squirrel and a nut
Step 1 of the carbon dioxide and oxygen cycle
food chain
where is one organism harmed and one helped?
what organisms help each other

24. The exchange of gasses between producers and consumers
producer
where is one organism harmed and one helped?
host
carbon dioxide and oxygen cycle

25. Carbon dioxide
host
what gas do people breathe out
4 types of consumers
difference between producers and consumers

26. Carbon dioxide
food web
purpose of decomposers
the gas people breathe in...
what gas do people breathe out

27. An organism that makes it's own food
parasite
population
producer
the gas people breathe in...

28. The organism a parasite lives on or in
ecosystem
producer
host
producer

29. A tapeworm and a human
carbon dioxide and oxygen cycle
purpose of decomposers
where is one organism harmed and one helped?
parasite

30. All the living and non living things in an environment
food web
ecosystem
population
Step 1 of the carbon dioxide and oxygen cycle

31. All the living things in an ecosystem
community
parasite
host
what gas do people breathe out

32. All the living things in an ecosystem
food chain
community
difference between producers and consumers
consumer

33. An organism that lives in or on another organism
purpose of decomposers
parasite
carbon dioxide and oxygen cycle
the gas people breathe in...

34. Oxygen
producer
the gas people breathe in...
food web
decomposer

35. Consumers give off carbon dioxide
Step 3 of the carbon dioxide and oxygen cycle
5 things all living things need to survive
list 6 ecosystems
population

36. Plant - grass - flower - trees
the gas people breathe in...
purpose of decomposers
what gas do people breathe out
4 types of producers

37. Air - water - sun - shelter - food
3 groups that make up the energy pyramid
carbon dioxide and oxygen cycle
ecosystem
5 things all living things need to survive

38. Consumers eat producers and other consumers. Producers make their own food
host
difference between producers and consumers
the ONE thing all food that we eat comes from
energy pyramid

39. An organism that breaks down plant and animal material
decomposer
producer
carbon dioxide and oxygen cycle
producer

40. Tundra - dessert - rain forest - ocean - pond - lake
list 6 ecosystems
consumer
4 types of consumers
food web

41. An organism that eats the producer and other consumers
purpose of decomposers
consumer
where is one organism harmed and one helped?
what organisms help each other

42. Producers - plant eaters - meat eaters
difference between producers and consumers
5 things all living things need to survive
3 groups that make up the energy pyramid
decomposer

43. Producers - plant eaters - meat eaters
what gas do people breathe out
3 groups that make up the energy pyramid
community
consumer

44. Tundra - dessert - rain forest - ocean - pond - lake
list 6 ecosystems
what organisms help each other
4 types of consumers
difference between producers and consumers

45. Forest....plants and algae
where the world's oxygen supply comes from
what organisms help each other
where is one organism harmed and one helped?
5 things all living things need to survive

46. Tiger - bear - fox - wolf
food web
host
population
4 types of consumers

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

48. Producers take in carbon dioxide from the consumer
host
Step 4 of the carbon dioxide and oxygen cycle
community
4 types of consumers

49. A diagram that shows how energy in an ecosystem is used
what gas do people breathe out
energy pyramid
purpose of decomposers
ecosystem

50. The organism a parasite lives on or in
food web
the gas people breathe in...
population
host

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3rd Grade Science Common Core

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