Test your basic knowledge |

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

2. Plant - grass - flower - trees
list 6 ecosystems
4 types of producers
consumer
habitat

3. Producers give off oxygen as the make their own food
the gas people breathe in...
Step 2 of the carbon dioxide and oxygen cycle
Step 1 of the carbon dioxide and oxygen cycle
purpose of decomposers

4. Consumers take in the oxygen that the producers make
decomposer
parasite
Step 2 of the carbon dioxide and oxygen cycle
list 6 ecosystems

5. Producers - plant eaters - meat eaters
Step 2 of the carbon dioxide and oxygen cycle
what gas do people breathe out
3 groups that make up the energy pyramid
food web

6. The place where a plant or animal naturally lives or grows
food web
Step 2 of the carbon dioxide and oxygen cycle
habitat
Step 1 of the carbon dioxide and oxygen cycle

7. Forest....plants and algae

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8. We need them because they break down dead plants and animals
Step 2 of the carbon dioxide and oxygen cycle
purpose of decomposers
parasite
consumer

9. All the living and non living things in an environment
ecosystem
5 things all living things need to survive
Step 1 of the carbon dioxide and oxygen cycle
Step 3 of the carbon dioxide and oxygen cycle

10. Producers take in carbon dioxide from the consumer
where the world's oxygen supply comes from
the gas people breathe in...
parasite
Step 4 of the carbon dioxide and oxygen cycle

11. A tapeworm and a human
where the world's oxygen supply comes from
ecosystem
where is one organism harmed and one helped?
4 types of consumers

12. The place where a plant or animal naturally lives or grows
4 types of consumers
where the world's oxygen supply comes from
habitat
energy pyramid

13. A diagram that shows how energy in an ecosystem is used
decomposer
energy pyramid
habitat
if the part of the food chain is missing...then what happens?

14. The organism a parasite lives on or in
what gas do people breathe out
Step 1 of the carbon dioxide and oxygen cycle
parasite
host

15. All the members of a certain type of a living thing in an area
what gas do people breathe out
list 6 ecosystems
where the world's oxygen supply comes from
population

16. Forest....plants and algae

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17. A squirrel and a nut
population
5 things all living things need to survive
where the world's oxygen supply comes from
what organisms help each other

18. Oxygen
5 things all living things need to survive
energy pyramid
the gas people breathe in...
what gas do people breathe out

19. All the living things in an ecosystem
Step 3 of the carbon dioxide and oxygen cycle
consumer
community
host

20. The exchange of gasses between producers and consumers
the ONE thing all food that we eat comes from
3 groups that make up the energy pyramid
carbon dioxide and oxygen cycle
population

21. All the living things in an ecosystem
parasite
Step 3 of the carbon dioxide and oxygen cycle
community
parasite

22. They all die
if the part of the food chain is missing...then what happens?
3 groups that make up the energy pyramid
food web
population

23. Tiger - bear - fox - wolf
4 types of consumers
what gas do people breathe out
parasite
food web

24. An organism that eats the producer and other consumers
energy pyramid
consumer
food web
the ONE thing all food that we eat comes from

25. Plant - grass - flower - trees
4 types of producers
what organisms help each other
where is one organism harmed and one helped?
4 types of consumers

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

27. A tapeworm and a human
where is one organism harmed and one helped?
Step 3 of the carbon dioxide and oxygen cycle
food chain
difference between producers and consumers

28. All the living and non living things in an environment
3 groups that make up the energy pyramid
ecosystem
Step 1 of the carbon dioxide and oxygen cycle
5 things all living things need to survive

29. Several food chains that are connected
4 types of consumers
consumer
decomposer
food web

30. An organism that makes it's own food
producer
carbon dioxide and oxygen cycle
habitat
host

31. Tiger - bear - fox - wolf
4 types of consumers
where the world's oxygen supply comes from
Step 2 of the carbon dioxide and oxygen cycle
Step 4 of the carbon dioxide and oxygen cycle

32. An organism that lives in or on another organism
parasite
energy pyramid
if the part of the food chain is missing...then what happens?
list 6 ecosystems

33. A squirrel and a nut
population
what organisms help each other
Step 2 of the carbon dioxide and oxygen cycle
if the part of the food chain is missing...then what happens?

34. Consumers give off carbon dioxide
Step 3 of the carbon dioxide and oxygen cycle
if the part of the food chain is missing...then what happens?
energy pyramid
community

35. A series of organisims that depend on another for food
food chain
Step 2 of the carbon dioxide and oxygen cycle
Step 4 of the carbon dioxide and oxygen cycle
decomposer

36. An organism that breaks down plant and animal material
decomposer
parasite
Step 2 of the carbon dioxide and oxygen cycle
where is one organism harmed and one helped?

37. Consumers eat producers and other consumers. Producers make their own food
where is one organism harmed and one helped?
difference between producers and consumers
purpose of decomposers
consumer

38. Several food chains that are connected
food web
community
difference between producers and consumers
energy pyramid

39. We need them because they break down dead plants and animals
community
purpose of decomposers
habitat
3 groups that make up the energy pyramid

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

41. Carbon dioxide
what gas do people breathe out
where the world's oxygen supply comes from
food web
consumer

42. The exchange of gasses between producers and consumers
carbon dioxide and oxygen cycle
4 types of consumers
decomposer
list 6 ecosystems

43. A series of organisims that depend on another for food
the ONE thing all food that we eat comes from
food chain
list 6 ecosystems
Step 1 of the carbon dioxide and oxygen cycle

44. They all die
ecosystem
if the part of the food chain is missing...then what happens?
population
decomposer

45. Air - water - sun - shelter - food
producer
the gas people breathe in...
5 things all living things need to survive
energy pyramid

46. Tundra - dessert - rain forest - ocean - pond - lake
Step 4 of the carbon dioxide and oxygen cycle
if the part of the food chain is missing...then what happens?
list 6 ecosystems
4 types of consumers

47. An organism that breaks down plant and animal material
habitat
decomposer
host
what organisms help each other

48. Producers take in carbon dioxide from the consumer
Step 4 of the carbon dioxide and oxygen cycle
Step 1 of the carbon dioxide and oxygen cycle
difference between producers and consumers
if the part of the food chain is missing...then what happens?

49. All the members of a certain type of a living thing in an area
list 6 ecosystems
the gas people breathe in...
population
decomposer

50. An organism that eats the producer and other consumers
where the world's oxygen supply comes from
Step 2 of the carbon dioxide and oxygen cycle
consumer
population