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

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

3. They all die
what organisms help each other
if the part of the food chain is missing...then what happens?
food chain
consumer

4. All the living and non living things in an environment
producer
what gas do people breathe out
Step 4 of the carbon dioxide and oxygen cycle
ecosystem

5. The organism a parasite lives on or in
consumer
what gas do people breathe out
host
food web

6. The place where a plant or animal naturally lives or grows
food chain
Step 4 of the carbon dioxide and oxygen cycle
host
habitat

7. All the members of a certain type of a living thing in an area
ecosystem
where is one organism harmed and one helped?
producer
population

8. An organism that lives in or on another organism
parasite
Step 3 of the carbon dioxide and oxygen cycle
3 groups that make up the energy pyramid
the ONE thing all food that we eat comes from

9. Consumers give off carbon dioxide
Step 3 of the carbon dioxide and oxygen cycle
difference between producers and consumers
where the world's oxygen supply comes from
food web

10. Plants
producer
food web
host
the ONE thing all food that we eat comes from

11. Producers take in carbon dioxide from the consumer
Step 4 of the carbon dioxide and oxygen cycle
carbon dioxide and oxygen cycle
habitat
food chain

12. Forest....plants and algae

13. The exchange of gasses between producers and consumers
where the world's oxygen supply comes from
parasite
5 things all living things need to survive
carbon dioxide and oxygen cycle

14. Producers give off oxygen as the make their own food
if the part of the food chain is missing...then what happens?
the gas people breathe in...
Step 1 of the carbon dioxide and oxygen cycle
food web

15. Producers - plant eaters - meat eaters
if the part of the food chain is missing...then what happens?
3 groups that make up the energy pyramid
food web
community

16. Air - water - sun - shelter - food
3 groups that make up the energy pyramid
5 things all living things need to survive
energy pyramid
parasite

17. Tiger - bear - fox - wolf
4 types of consumers
3 groups that make up the energy pyramid
Step 4 of the carbon dioxide and oxygen cycle
host

18. Air - water - sun - shelter - food
purpose of decomposers
where is one organism harmed and one helped?
consumer
5 things all living things need to survive

19. A series of organisims that depend on another for food
what gas do people breathe out
energy pyramid
food chain
if the part of the food chain is missing...then what happens?

20. An organism that breaks down plant and animal material
community
Step 1 of the carbon dioxide and oxygen cycle
decomposer
what gas do people breathe out

21. A squirrel and a nut
food web
decomposer
purpose of decomposers
what organisms help each other

22. All the living things in an ecosystem
consumer
Step 2 of the carbon dioxide and oxygen cycle
community
carbon dioxide and oxygen cycle

23. An organism that lives in or on another organism
parasite
carbon dioxide and oxygen cycle
where is one organism harmed and one helped?
habitat

24. Oxygen
the gas people breathe in...
producer
decomposer
list 6 ecosystems

25. Carbon dioxide
Step 2 of the carbon dioxide and oxygen cycle
energy pyramid
decomposer
what gas do people breathe out

26. We need them because they break down dead plants and animals
if the part of the food chain is missing...then what happens?
purpose of decomposers
the ONE thing all food that we eat comes from
Step 4 of the carbon dioxide and oxygen cycle

27. Tundra - dessert - rain forest - ocean - pond - lake
list 6 ecosystems
purpose of decomposers
carbon dioxide and oxygen cycle
habitat

28. A tapeworm and a human
food chain
difference between producers and consumers
where is one organism harmed and one helped?
energy pyramid

29. An organism that makes it's own food
producer
consumer
if the part of the food chain is missing...then what happens?
Step 3 of the carbon dioxide and oxygen cycle

30. Consumers give off carbon dioxide
difference between producers and consumers
Step 3 of the carbon dioxide and oxygen cycle
producer
energy pyramid

31. Plant - grass - flower - trees
4 types of producers
where the world's oxygen supply comes from
if the part of the food chain is missing...then what happens?
population

32. Producers take in carbon dioxide from the consumer
Step 4 of the carbon dioxide and oxygen cycle
the ONE thing all food that we eat comes from
difference between producers and consumers
consumer

33. An organism that breaks down plant and animal material
Step 3 of the carbon dioxide and oxygen cycle
decomposer
4 types of producers
list 6 ecosystems

34. Plant - grass - flower - trees
4 types of consumers
4 types of producers
the gas people breathe in...
the gas people breathe in...

35. An organism that eats the producer and other consumers
energy pyramid
difference between producers and consumers
where the world's oxygen supply comes from
consumer

36. A series of organisims that depend on another for food
food web
food chain
where the world's oxygen supply comes from
list 6 ecosystems

37. Tundra - dessert - rain forest - ocean - pond - lake
host
list 6 ecosystems
5 things all living things need to survive
energy pyramid

38. They all die
what gas do people breathe out
habitat
if the part of the food chain is missing...then what happens?
carbon dioxide and oxygen cycle

39. Consumers eat producers and other consumers. Producers make their own food
host
difference between producers and consumers
what gas do people breathe out
parasite

40. Forest....plants and algae

41. An organism that eats the producer and other consumers
4 types of consumers
food chain
consumer
energy pyramid

42. A tapeworm and a human
decomposer
where is one organism harmed and one helped?
Step 4 of the carbon dioxide and oxygen cycle
food chain

43. Carbon dioxide
what gas do people breathe out
where the world's oxygen supply comes from
if the part of the food chain is missing...then what happens?
consumer

44. The place where a plant or animal naturally lives or grows
Step 4 of the carbon dioxide and oxygen cycle
habitat
the gas people breathe in...
what organisms help each other

45. A diagram that shows how energy in an ecosystem is used
producer
population
energy pyramid
habitat

46. All the living and non living things in an environment
community
where the world's oxygen supply comes from
difference between producers and consumers
ecosystem

47. All the living things in an ecosystem
list 6 ecosystems
what organisms help each other
community
4 types of producers

48. An organism that makes it's own food
Step 3 of the carbon dioxide and oxygen cycle
producer
if the part of the food chain is missing...then what happens?
Step 1 of the carbon dioxide and oxygen cycle

49. A diagram that shows how energy in an ecosystem is used
Step 4 of the carbon dioxide and oxygen cycle
population
purpose of decomposers
energy pyramid

50. Tiger - bear - fox - wolf
4 types of consumers
producer
carbon dioxide and oxygen cycle
energy pyramid