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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. All the living and non living things in an environment
if the part of the food chain is missing...then what happens?
food chain
ecosystem
the ONE thing all food that we eat comes from

2. Tundra - dessert - rain forest - ocean - pond - lake
purpose of decomposers
list 6 ecosystems
food web
decomposer

3. Several food chains that are connected
decomposer
producer
energy pyramid
food web

4. All the living things in an ecosystem
community
population
habitat
list 6 ecosystems

5. Plant - grass - flower - trees
what gas do people breathe out
where is one organism harmed and one helped?
4 types of consumers
4 types of producers

6. A tapeworm and a human
community
where is one organism harmed and one helped?
carbon dioxide and oxygen cycle
difference between producers and consumers

7. Oxygen
Step 3 of the carbon dioxide and oxygen cycle
carbon dioxide and oxygen cycle
the gas people breathe in...
list 6 ecosystems

8. Consumers give off carbon dioxide
population
the gas people breathe in...
decomposer
Step 3 of the carbon dioxide and oxygen cycle

9. Producers give off oxygen as the make their own food
consumer
list 6 ecosystems
Step 1 of the carbon dioxide and oxygen cycle
habitat

10. Tiger - bear - fox - wolf
the ONE thing all food that we eat comes from
4 types of consumers
3 groups that make up the energy pyramid
population

11. Forest....plants and algae

12. Carbon dioxide
Step 3 of the carbon dioxide and oxygen cycle
consumer
what gas do people breathe out
Step 1 of the carbon dioxide and oxygen cycle

13. The exchange of gasses between producers and consumers
food chain
the gas people breathe in...
Step 3 of the carbon dioxide and oxygen cycle
carbon dioxide and oxygen cycle

14. An organism that makes it's own food
3 groups that make up the energy pyramid
Step 3 of the carbon dioxide and oxygen cycle
producer
energy pyramid

15. A tapeworm and a human
Step 4 of the carbon dioxide and oxygen cycle
decomposer
3 groups that make up the energy pyramid
where is one organism harmed and one helped?

16. An organism that makes it's own food
habitat
producer
where the world's oxygen supply comes from
where is one organism harmed and one helped?

17. They all die
energy pyramid
if the part of the food chain is missing...then what happens?
Step 2 of the carbon dioxide and oxygen cycle
where the world's oxygen supply comes from

18. An organism that lives in or on another organism
parasite
host
4 types of producers
Step 3 of the carbon dioxide and oxygen cycle

19. An organism that eats the producer and other consumers
Step 4 of the carbon dioxide and oxygen cycle
consumer
Step 3 of the carbon dioxide and oxygen cycle
if the part of the food chain is missing...then what happens?

20. They all die
if the part of the food chain is missing...then what happens?
Step 1 of the carbon dioxide and oxygen cycle
parasite
food chain

21. We need them because they break down dead plants and animals
what gas do people breathe out
habitat
purpose of decomposers
producer

22. A squirrel and a nut
host
Step 4 of the carbon dioxide and oxygen cycle
what organisms help each other
the ONE thing all food that we eat comes from

23. A squirrel and a nut
habitat
5 things all living things need to survive
decomposer
what organisms help each other

24. A series of organisims that depend on another for food
carbon dioxide and oxygen cycle
decomposer
food chain
4 types of consumers

25. Plants
the ONE thing all food that we eat comes from
community
3 groups that make up the energy pyramid
Step 1 of the carbon dioxide and oxygen cycle

26. All the members of a certain type of a living thing in an area
population
what organisms help each other
Step 2 of the carbon dioxide and oxygen cycle
habitat

27. Producers - plant eaters - meat eaters
3 groups that make up the energy pyramid
ecosystem
where is one organism harmed and one helped?
carbon dioxide and oxygen cycle

28. Tiger - bear - fox - wolf
4 types of consumers
population
difference between producers and consumers
3 groups that make up the energy pyramid

29. The organism a parasite lives on or in
host
where the world's oxygen supply comes from
what organisms help each other
where the world's oxygen supply comes from

30. The place where a plant or animal naturally lives or grows
habitat
if the part of the food chain is missing...then what happens?
the gas people breathe in...
food chain

31. Tundra - dessert - rain forest - ocean - pond - lake
carbon dioxide and oxygen cycle
list 6 ecosystems
what gas do people breathe out
the gas people breathe in...

32. A series of organisims that depend on another for food
Step 4 of the carbon dioxide and oxygen cycle
producer
food chain
4 types of producers

33. We need them because they break down dead plants and animals
list 6 ecosystems
the gas people breathe in...
carbon dioxide and oxygen cycle
purpose of decomposers

34. All the members of a certain type of a living thing in an area
population
the ONE thing all food that we eat comes from
where the world's oxygen supply comes from
5 things all living things need to survive

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

36. The place where a plant or animal naturally lives or grows
4 types of consumers
carbon dioxide and oxygen cycle
population
habitat

37. Oxygen
where is one organism harmed and one helped?
if the part of the food chain is missing...then what happens?
difference between producers and consumers
the gas people breathe in...

38. Consumers take in the oxygen that the producers make
the gas people breathe in...
Step 2 of the carbon dioxide and oxygen cycle
purpose of decomposers
parasite

39. The exchange of gasses between producers and consumers
what organisms help each other
3 groups that make up the energy pyramid
decomposer
carbon dioxide and oxygen cycle

40. Several food chains that are connected
food web
3 groups that make up the energy pyramid
host
4 types of consumers

41. The organism a parasite lives on or in
purpose of decomposers
the gas people breathe in...
host
food chain

42. Producers take in carbon dioxide from the consumer
consumer
Step 3 of the carbon dioxide and oxygen cycle
decomposer
Step 4 of the carbon dioxide and oxygen cycle

43. Forest....plants and algae

44. All the living and non living things in an environment
5 things all living things need to survive
ecosystem
Step 4 of the carbon dioxide and oxygen cycle
what organisms help each other

45. Consumers give off carbon dioxide
Step 2 of the carbon dioxide and oxygen cycle
carbon dioxide and oxygen cycle
Step 3 of the carbon dioxide and oxygen cycle
difference between producers and consumers

46. An organism that lives in or on another organism
parasite
decomposer
community
host

47. Carbon dioxide
decomposer
5 things all living things need to survive
what gas do people breathe out
decomposer

48. All the living things in an ecosystem
ecosystem
community
list 6 ecosystems
where the world's oxygen supply comes from

49. Producers take in carbon dioxide from the consumer
list 6 ecosystems
Step 4 of the carbon dioxide and oxygen cycle
parasite
the ONE thing all food that we eat comes from

50. An organism that breaks down plant and animal material
producer
the ONE thing all food that we eat comes from
decomposer
Step 3 of the carbon dioxide and oxygen cycle