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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. Forest....plants and algae

2. Producers give off oxygen as the make their own food
where is one organism harmed and one helped?
ecosystem
Step 1 of the carbon dioxide and oxygen cycle
consumer

3. We need them because they break down dead plants and animals
the gas people breathe in...
energy pyramid
food chain
purpose of decomposers

4. Producers take in carbon dioxide from the consumer
the ONE thing all food that we eat comes from
Step 4 of the carbon dioxide and oxygen cycle
parasite
3 groups that make up the energy pyramid

5. They all die
if the part of the food chain is missing...then what happens?
4 types of consumers
habitat
habitat

6. All the living and non living things in an environment
ecosystem
the gas people breathe in...
community
food web

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

8. Consumers eat producers and other consumers. Producers make their own food
population
4 types of producers
difference between producers and consumers
energy pyramid

9. Forest....plants and algae

10. An organism that makes it's own food
difference between producers and consumers
the ONE thing all food that we eat comes from
food chain
producer

11. All the living things in an ecosystem
food web
5 things all living things need to survive
ecosystem
community

12. An organism that breaks down plant and animal material
decomposer
difference between producers and consumers
carbon dioxide and oxygen cycle
food chain

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

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

15. Plants
list 6 ecosystems
if the part of the food chain is missing...then what happens?
the ONE thing all food that we eat comes from
habitat

16. The place where a plant or animal naturally lives or grows
habitat
ecosystem
Step 4 of the carbon dioxide and oxygen cycle
4 types of consumers

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

18. An organism that eats the producer and other consumers
Step 2 of the carbon dioxide and oxygen cycle
the ONE thing all food that we eat comes from
consumer
carbon dioxide and oxygen cycle

19. An organism that lives in or on another organism
4 types of producers
where is one organism harmed and one helped?
carbon dioxide and oxygen cycle
parasite

20. Air - water - sun - shelter - food
where is one organism harmed and one helped?
parasite
where is one organism harmed and one helped?
5 things all living things need to survive

21. Tiger - bear - fox - wolf
where the world's oxygen supply comes from
4 types of consumers
decomposer
community

22. All the living things in an ecosystem
community
what gas do people breathe out
list 6 ecosystems
where the world's oxygen supply comes from

23. An organism that eats the producer and other consumers
where the world's oxygen supply comes from
carbon dioxide and oxygen cycle
ecosystem
consumer

24. Consumers give off carbon dioxide
ecosystem
Step 3 of the carbon dioxide and oxygen cycle
parasite
carbon dioxide and oxygen cycle

25. A diagram that shows how energy in an ecosystem is used
host
host
energy pyramid
consumer

26. An organism that makes it's own food
Step 2 of the carbon dioxide and oxygen cycle
producer
if the part of the food chain is missing...then what happens?
4 types of consumers

27. Producers give off oxygen as the make their own food
if the part of the food chain is missing...then what happens?
Step 3 of the carbon dioxide and oxygen cycle
if the part of the food chain is missing...then what happens?
Step 1 of the carbon dioxide and oxygen cycle

28. Oxygen
habitat
food chain
the gas people breathe in...
Step 4 of the carbon dioxide and oxygen cycle

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

30. All the members of a certain type of a living thing in an area
what organisms help each other
producer
consumer
population

31. Air - water - sun - shelter - food
4 types of consumers
5 things all living things need to survive
what organisms help each other
Step 1 of the carbon dioxide and oxygen cycle

32. Consumers take in the oxygen that the producers make
Step 4 of the carbon dioxide and oxygen cycle
parasite
the ONE thing all food that we eat comes from
Step 2 of the carbon dioxide and oxygen cycle

33. All the members of a certain type of a living thing in an area
list 6 ecosystems
purpose of decomposers
5 things all living things need to survive
population

34. A diagram that shows how energy in an ecosystem is used
3 groups that make up the energy pyramid
Step 3 of the carbon dioxide and oxygen cycle
energy pyramid
Step 1 of the carbon dioxide and oxygen cycle

35. An organism that lives in or on another organism
parasite
what organisms help each other
4 types of consumers
where the world's oxygen supply comes from

36. The exchange of gasses between producers and consumers
energy pyramid
Step 4 of the carbon dioxide and oxygen cycle
energy pyramid
carbon dioxide and oxygen cycle

37. A series of organisims that depend on another for food
the gas people breathe in...
food chain
purpose of decomposers
where is one organism harmed and one helped?

38. Plant - grass - flower - trees
4 types of producers
population
what gas do people breathe out
difference between producers and consumers

39. Carbon dioxide
what gas do people breathe out
consumer
Step 2 of the carbon dioxide and oxygen cycle
decomposer

40. A tapeworm and a human
list 6 ecosystems
ecosystem
where is one organism harmed and one helped?
5 things all living things need to survive

41. Plant - grass - flower - trees
purpose of decomposers
4 types of consumers
purpose of decomposers
4 types of producers

42. Producers - plant eaters - meat eaters
what organisms help each other
3 groups that make up the energy pyramid
carbon dioxide and oxygen cycle
food web

43. All the living and non living things in an environment
list 6 ecosystems
ecosystem
producer
population

44. Plants
Step 2 of the carbon dioxide and oxygen cycle
food web
Step 3 of the carbon dioxide and oxygen cycle
the ONE thing all food that we eat comes from

45. A squirrel and a nut
Step 4 of the carbon dioxide and oxygen cycle
5 things all living things need to survive
the gas people breathe in...
what organisms help each other

46. Consumers give off carbon dioxide
3 groups that make up the energy pyramid
where the world's oxygen supply comes from
Step 4 of the carbon dioxide and oxygen cycle
Step 3 of the carbon dioxide and oxygen cycle

47. Tiger - bear - fox - wolf
5 things all living things need to survive
Step 4 of the carbon dioxide and oxygen cycle
4 types of consumers
habitat

48. Several food chains that are connected
food web
decomposer
what organisms help each other
where is one organism harmed and one helped?

49. The place where a plant or animal naturally lives or grows
where is one organism harmed and one helped?
parasite
habitat
where the world's oxygen supply comes from

50. The organism a parasite lives on or in
habitat
host
Step 1 of the carbon dioxide and oxygen cycle
list 6 ecosystems