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
where is one organism harmed and one helped?
host
the ONE thing all food that we eat comes from
community

2. A squirrel and a nut
what gas do people breathe out
what organisms help each other
Step 2 of the carbon dioxide and oxygen cycle
where the world's oxygen supply comes from

3. The exchange of gasses between producers and consumers
carbon dioxide and oxygen cycle
if the part of the food chain is missing...then what happens?
ecosystem
food web

4. All the living and non living things in an environment
difference between producers and consumers
Step 2 of the carbon dioxide and oxygen cycle
decomposer
ecosystem

5. Consumers eat producers and other consumers. Producers make their own food
population
list 6 ecosystems
parasite
difference between producers and consumers

6. An organism that eats the producer and other consumers
Step 4 of the carbon dioxide and oxygen cycle
the ONE thing all food that we eat comes from
consumer
3 groups that make up the energy pyramid

7. Consumers eat producers and other consumers. Producers make their own food
habitat
carbon dioxide and oxygen cycle
Step 2 of the carbon dioxide and oxygen cycle
difference between producers and consumers

8. Producers - plant eaters - meat eaters
population
3 groups that make up the energy pyramid
the ONE thing all food that we eat comes from
Step 2 of the carbon dioxide and oxygen cycle

9. All the members of a certain type of a living thing in an area
food web
population
list 6 ecosystems
purpose of decomposers

10. Producers take in carbon dioxide from the consumer
food web
Step 4 of the carbon dioxide and oxygen cycle
Step 1 of the carbon dioxide and oxygen cycle
purpose of decomposers

11. Producers give off oxygen as the make their own food
4 types of consumers
parasite
Step 1 of the carbon dioxide and oxygen cycle
difference between producers and consumers

12. An organism that makes it's own food
producer
consumer
where the world's oxygen supply comes from
Step 1 of the carbon dioxide and oxygen cycle

13. Plants
what gas do people breathe out
decomposer
the ONE thing all food that we eat comes from
Step 2 of the carbon dioxide and oxygen cycle

14. An organism that eats the producer and other consumers
ecosystem
consumer
habitat
the ONE thing all food that we eat comes from

15. Several food chains that are connected
Step 1 of the carbon dioxide and oxygen cycle
Step 1 of the carbon dioxide and oxygen cycle
food web
4 types of producers

16. Forest....plants and algae

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17. We need them because they break down dead plants and animals
purpose of decomposers
carbon dioxide and oxygen cycle
where is one organism harmed and one helped?
Step 2 of the carbon dioxide and oxygen cycle

18. Forest....plants and algae

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19. Plant - grass - flower - trees
the gas people breathe in...
4 types of producers
what organisms help each other
list 6 ecosystems

20. An organism that lives in or on another organism
list 6 ecosystems
what gas do people breathe out
list 6 ecosystems
parasite

21. A diagram that shows how energy in an ecosystem is used
consumer
the gas people breathe in...
4 types of consumers
energy pyramid

22. All the living and non living things in an environment
ecosystem
consumer
3 groups that make up the energy pyramid
3 groups that make up the energy pyramid

23. Tiger - bear - fox - wolf
if the part of the food chain is missing...then what happens?
4 types of consumers
decomposer
food chain

24. Producers give off oxygen as the make their own food
Step 1 of the carbon dioxide and oxygen cycle
where is one organism harmed and one helped?
what organisms help each other
the ONE thing all food that we eat comes from

25. Oxygen
carbon dioxide and oxygen cycle
Step 2 of the carbon dioxide and oxygen cycle
the gas people breathe in...
list 6 ecosystems

26. A tapeworm and a human
where is one organism harmed and one helped?
the ONE thing all food that we eat comes from
list 6 ecosystems
where the world's oxygen supply comes from

27. The organism a parasite lives on or in
4 types of consumers
host
difference between producers and consumers
food chain

28. Consumers give off carbon dioxide
Step 2 of the carbon dioxide and oxygen cycle
Step 1 of the carbon dioxide and oxygen cycle
Step 3 of the carbon dioxide and oxygen cycle
list 6 ecosystems

29. An organism that makes it's own food
habitat
producer
Step 4 of the carbon dioxide and oxygen cycle
what organisms help each other

30. Tundra - dessert - rain forest - ocean - pond - lake
list 6 ecosystems
5 things all living things need to survive
if the part of the food chain is missing...then what happens?
Step 1 of the carbon dioxide and oxygen cycle

31. A series of organisims that depend on another for food
food chain
if the part of the food chain is missing...then what happens?
food web
producer

32. Several food chains that are connected
Step 3 of the carbon dioxide and oxygen cycle
food web
decomposer
ecosystem

33. They all die
food web
host
parasite
if the part of the food chain is missing...then what happens?

34. Consumers give off carbon dioxide
carbon dioxide and oxygen cycle
Step 3 of the carbon dioxide and oxygen cycle
food web
habitat

35. A diagram that shows how energy in an ecosystem is used
energy pyramid
where is one organism harmed and one helped?
what organisms help each other
host

36. Consumers take in the oxygen that the producers make
5 things all living things need to survive
Step 3 of the carbon dioxide and oxygen cycle
4 types of consumers
Step 2 of the carbon dioxide and oxygen cycle

37. All the living things in an ecosystem
host
community
list 6 ecosystems
5 things all living things need to survive

38. The exchange of gasses between producers and consumers
carbon dioxide and oxygen cycle
parasite
energy pyramid
decomposer

39. Tundra - dessert - rain forest - ocean - pond - lake
5 things all living things need to survive
list 6 ecosystems
decomposer
Step 2 of the carbon dioxide and oxygen cycle

40. Oxygen
difference between producers and consumers
4 types of consumers
the ONE thing all food that we eat comes from
the gas people breathe in...

41. They all die
4 types of producers
if the part of the food chain is missing...then what happens?
producer
what organisms help each other

42. An organism that breaks down plant and animal material
Step 4 of the carbon dioxide and oxygen cycle
what organisms help each other
purpose of decomposers
decomposer

43. Consumers take in the oxygen that the producers make
what organisms help each other
Step 2 of the carbon dioxide and oxygen cycle
4 types of consumers
population

44. All the members of a certain type of a living thing in an area
purpose of decomposers
parasite
where the world's oxygen supply comes from
population

45. The place where a plant or animal naturally lives or grows
the ONE thing all food that we eat comes from
habitat
Step 2 of the carbon dioxide and oxygen cycle
difference between producers and consumers

46. Carbon dioxide
what gas do people breathe out
food web
the gas people breathe in...
list 6 ecosystems

47. The organism a parasite lives on or in
parasite
Step 3 of the carbon dioxide and oxygen cycle
4 types of producers
host

48. Air - water - sun - shelter - food
4 types of consumers
difference between producers and consumers
what gas do people breathe out
5 things all living things need to survive

49. Air - water - sun - shelter - food
4 types of consumers
5 things all living things need to survive
the ONE thing all food that we eat comes from
producer

50. Plant - grass - flower - trees
host
habitat
4 types of producers
Step 4 of the carbon dioxide and oxygen cycle