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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. Producers give off oxygen as the make their own food
Step 1 of the carbon dioxide and oxygen cycle
difference between producers and consumers
4 types of producers
Step 2 of the carbon dioxide and oxygen cycle

2. An organism that lives in or on another organism
if the part of the food chain is missing...then what happens?
population
parasite
producer

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

4. All the members of a certain type of a living thing in an area
population
purpose of decomposers
where the world's oxygen supply comes from
the ONE thing all food that we eat comes from

5. Consumers eat producers and other consumers. Producers make their own food
difference between producers and consumers
if the part of the food chain is missing...then what happens?
population
what organisms help each other

6. Producers give off oxygen as the make their own food
Step 1 of the carbon dioxide and oxygen cycle
energy pyramid
decomposer
host

7. Oxygen
5 things all living things need to survive
the ONE thing all food that we eat comes from
consumer
the gas people breathe in...

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

9. A diagram that shows how energy in an ecosystem is used
carbon dioxide and oxygen cycle
Step 4 of the carbon dioxide and oxygen cycle
energy pyramid
the ONE thing all food that we eat comes from

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

11. Forest....plants and algae

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

13. Consumers take in the oxygen that the producers make
consumer
what gas do people breathe out
where is one organism harmed and one helped?
Step 2 of the carbon dioxide and oxygen cycle

14. An organism that makes it's own food
list 6 ecosystems
producer
where the world's oxygen supply comes from
5 things all living things need to survive

15. An organism that makes it's own food
where is one organism harmed and one helped?
the gas people breathe in...
where is one organism harmed and one helped?
producer

16. Tundra - dessert - rain forest - ocean - pond - lake
food web
Step 1 of the carbon dioxide and oxygen cycle
list 6 ecosystems
purpose of decomposers

17. Several food chains that are connected
food web
food chain
if the part of the food chain is missing...then what happens?
where the world's oxygen supply comes from

18. Plants
difference between producers and consumers
the ONE thing all food that we eat comes from
5 things all living things need to survive
5 things all living things need to survive

19. Consumers give off carbon dioxide
Step 4 of the carbon dioxide and oxygen cycle
the ONE thing all food that we eat comes from
Step 3 of the carbon dioxide and oxygen cycle
consumer

20. A tapeworm and a human
the ONE thing all food that we eat comes from
4 types of consumers
where is one organism harmed and one helped?
community

21. All the living and non living things in an environment
ecosystem
difference between producers and consumers
habitat
what organisms help each other

22. Tundra - dessert - rain forest - ocean - pond - lake
list 6 ecosystems
the ONE thing all food that we eat comes from
the gas people breathe in...
population

23. A series of organisims that depend on another for food
Step 1 of the carbon dioxide and oxygen cycle
where is one organism harmed and one helped?
habitat
food chain

24. A tapeworm and a human
purpose of decomposers
where is one organism harmed and one helped?
list 6 ecosystems
purpose of decomposers

25. An organism that eats the producer and other consumers
list 6 ecosystems
consumer
4 types of consumers
habitat

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

27. Producers - plant eaters - meat eaters
4 types of consumers
the ONE thing all food that we eat comes from
3 groups that make up the energy pyramid
5 things all living things need to survive

28. Oxygen
Step 2 of the carbon dioxide and oxygen cycle
Step 3 of the carbon dioxide and oxygen cycle
population
the gas people breathe in...

29. Carbon dioxide
Step 2 of the carbon dioxide and oxygen cycle
purpose of decomposers
what gas do people breathe out
Step 4 of the carbon dioxide and oxygen cycle

30. Consumers take in the oxygen that the producers make
4 types of producers
what organisms help each other
Step 1 of the carbon dioxide and oxygen cycle
Step 2 of the carbon dioxide and oxygen cycle

31. The organism a parasite lives on or in
energy pyramid
what gas do people breathe out
what organisms help each other
host

32. A series of organisims that depend on another for food
ecosystem
population
food chain
3 groups that make up the energy pyramid

33. Tiger - bear - fox - wolf
what organisms help each other
where is one organism harmed and one helped?
4 types of consumers
food web

34. Forest....plants and algae

35. Carbon dioxide
energy pyramid
what gas do people breathe out
purpose of decomposers
Step 1 of the carbon dioxide and oxygen cycle

36. Several food chains that are connected
community
5 things all living things need to survive
food web
producer

37. Producers take in carbon dioxide from the consumer
4 types of producers
Step 4 of the carbon dioxide and oxygen cycle
host
energy pyramid

38. An organism that eats the producer and other consumers
consumer
habitat
what gas do people breathe out
3 groups that make up the energy pyramid

39. An organism that breaks down plant and animal material
5 things all living things need to survive
energy pyramid
the ONE thing all food that we eat comes from
decomposer

40. The organism a parasite lives on or in
4 types of consumers
host
the ONE thing all food that we eat comes from
ecosystem

41. Consumers give off carbon dioxide
the ONE thing all food that we eat comes from
Step 3 of the carbon dioxide and oxygen cycle
Step 2 of the carbon dioxide and oxygen cycle
where the world's oxygen supply comes from

42. Tiger - bear - fox - wolf
carbon dioxide and oxygen cycle
4 types of consumers
what gas do people breathe out
4 types of producers

43. Air - water - sun - shelter - food
5 things all living things need to survive
3 groups that make up the energy pyramid
the gas people breathe in...
what gas do people breathe out

44. An organism that breaks down plant and animal material
parasite
population
decomposer
energy pyramid

45. An organism that lives in or on another organism
4 types of consumers
parasite
the gas people breathe in...
list 6 ecosystems

46. All the members of a certain type of a living thing in an area
Step 4 of the carbon dioxide and oxygen cycle
if the part of the food chain is missing...then what happens?
4 types of consumers
population

47. Plant - grass - flower - trees
food web
parasite
the ONE thing all food that we eat comes from
4 types of producers

48. They all die
what gas do people breathe out
host
food web
if the part of the food chain is missing...then what happens?

49. Producers - plant eaters - meat eaters
3 groups that make up the energy pyramid
host
what organisms help each other
difference between producers and consumers

50. All the living things in an ecosystem
parasite
community
Step 2 of the carbon dioxide and oxygen cycle
4 types of consumers