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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. The place where a plant or animal naturally lives or grows
habitat
the ONE thing all food that we eat comes from
where the world's oxygen supply comes from
3 groups that make up the energy pyramid

2. They all die
if the part of the food chain is missing...then what happens?
decomposer
difference between producers and consumers
ecosystem

3. An organism that makes it's own food
decomposer
Step 3 of the carbon dioxide and oxygen cycle
producer
what organisms help each other

4. All the members of a certain type of a living thing in an area
community
Step 3 of the carbon dioxide and oxygen cycle
population
carbon dioxide and oxygen cycle

5. A series of organisims that depend on another for food
the ONE thing all food that we eat comes from
food chain
difference between producers and consumers
list 6 ecosystems

6. An organism that breaks down plant and animal material
decomposer
if the part of the food chain is missing...then what happens?
population
the gas people breathe in...

7. Consumers take in the oxygen that the producers make
parasite
population
5 things all living things need to survive
Step 2 of the carbon dioxide and oxygen cycle

8. The organism a parasite lives on or in
host
3 groups that make up the energy pyramid
list 6 ecosystems
the ONE thing all food that we eat comes from

9. A tapeworm and a human
food chain
where is one organism harmed and one helped?
what organisms help each other
Step 4 of the carbon dioxide and oxygen cycle

10. A series of organisims that depend on another for food
difference between producers and consumers
food chain
energy pyramid
list 6 ecosystems

11. Several food chains that are connected
population
food web
host
parasite

12. The exchange of gasses between producers and consumers
host
population
habitat
carbon dioxide and oxygen cycle

13. An organism that lives in or on another organism
the ONE thing all food that we eat comes from
decomposer
energy pyramid
parasite

14. All the living and non living things in an environment
carbon dioxide and oxygen cycle
host
the gas people breathe in...
ecosystem

15. Plant - grass - flower - trees
the ONE thing all food that we eat comes from
food chain
where the world's oxygen supply comes from
4 types of producers

16. The place where a plant or animal naturally lives or grows
4 types of consumers
decomposer
habitat
community

17. Consumers eat producers and other consumers. Producers make their own food
where is one organism harmed and one helped?
decomposer
Step 1 of the carbon dioxide and oxygen cycle
difference between producers and consumers

18. An organism that breaks down plant and animal material
producer
decomposer
list 6 ecosystems
3 groups that make up the energy pyramid

19. Producers give off oxygen as the make their own food
Step 1 of the carbon dioxide and oxygen cycle
where the world's oxygen supply comes from
parasite
host

20. A tapeworm and a human
carbon dioxide and oxygen cycle
where is one organism harmed and one helped?
energy pyramid
what gas do people breathe out

21. All the living things in an ecosystem
Step 1 of the carbon dioxide and oxygen cycle
decomposer
community
ecosystem

22. Plants
Step 1 of the carbon dioxide and oxygen cycle
decomposer
the ONE thing all food that we eat comes from
carbon dioxide and oxygen cycle

23. The organism a parasite lives on or in
host
community
where is one organism harmed and one helped?
Step 3 of the carbon dioxide and oxygen cycle

24. All the members of a certain type of a living thing in an area
population
where is one organism harmed and one helped?
food web
4 types of producers

25. Tundra - dessert - rain forest - ocean - pond - lake
list 6 ecosystems
where the world's oxygen supply comes from
if the part of the food chain is missing...then what happens?
ecosystem

26. We need them because they break down dead plants and animals
Step 4 of the carbon dioxide and oxygen cycle
food web
host
purpose of decomposers

27. Tiger - bear - fox - wolf
decomposer
if the part of the food chain is missing...then what happens?
the ONE thing all food that we eat comes from
4 types of consumers

28. Consumers give off carbon dioxide
Step 3 of the carbon dioxide and oxygen cycle
parasite
purpose of decomposers
population

29. Producers take in carbon dioxide from the consumer
population
Step 4 of the carbon dioxide and oxygen cycle
what gas do people breathe out
difference between producers and consumers

30. An organism that eats the producer and other consumers
where is one organism harmed and one helped?
population
consumer
4 types of producers

31. Consumers eat producers and other consumers. Producers make their own food
the ONE thing all food that we eat comes from
producer
population
difference between producers and consumers

32. We need them because they break down dead plants and animals
purpose of decomposers
energy pyramid
what gas do people breathe out
energy pyramid

33. A squirrel and a nut
4 types of producers
what organisms help each other
host
population

34. Tundra - dessert - rain forest - ocean - pond - lake
host
producer
list 6 ecosystems
Step 2 of the carbon dioxide and oxygen cycle

35. A diagram that shows how energy in an ecosystem is used
4 types of producers
decomposer
Step 2 of the carbon dioxide and oxygen cycle
energy pyramid

36. A diagram that shows how energy in an ecosystem is used
host
3 groups that make up the energy pyramid
list 6 ecosystems
energy pyramid

37. Consumers give off carbon dioxide
food web
food chain
Step 3 of the carbon dioxide and oxygen cycle
what organisms help each other

38. Tiger - bear - fox - wolf
producer
food web
Step 4 of the carbon dioxide and oxygen cycle
4 types of consumers

39. Forest....plants and algae

40. All the living things in an ecosystem
purpose of decomposers
population
community
where the world's oxygen supply comes from

41. Plants
where is one organism harmed and one helped?
carbon dioxide and oxygen cycle
the ONE thing all food that we eat comes from
4 types of consumers

42. They all die
energy pyramid
ecosystem
if the part of the food chain is missing...then what happens?
Step 2 of the carbon dioxide and oxygen cycle

43. Producers - plant eaters - meat eaters
3 groups that make up the energy pyramid
food chain
habitat
4 types of consumers

44. Forest....plants and algae

45. Producers give off oxygen as the make their own food
energy pyramid
Step 2 of the carbon dioxide and oxygen cycle
energy pyramid
Step 1 of the carbon dioxide and oxygen cycle

46. Consumers take in the oxygen that the producers make
Step 2 of the carbon dioxide and oxygen cycle
Step 1 of the carbon dioxide and oxygen cycle
where is one organism harmed and one helped?
food web

47. Air - water - sun - shelter - food
the gas people breathe in...
5 things all living things need to survive
parasite
parasite

48. Carbon dioxide
if the part of the food chain is missing...then what happens?
carbon dioxide and oxygen cycle
5 things all living things need to survive
what gas do people breathe out

49. A squirrel and a nut
ecosystem
what organisms help each other
purpose of decomposers
energy pyramid

50. An organism that eats the producer and other consumers
5 things all living things need to survive
consumer
energy pyramid
4 types of producers