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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. They all die
what organisms help each other
if the part of the food chain is missing...then what happens?
decomposer
4 types of consumers

2. All the living and non living things in an environment
where the world's oxygen supply comes from
food chain
3 groups that make up the energy pyramid
ecosystem

3. The organism a parasite lives on or in
decomposer
carbon dioxide and oxygen cycle
host
Step 1 of the carbon dioxide and oxygen cycle

4. Consumers give off carbon dioxide
Step 3 of the carbon dioxide and oxygen cycle
4 types of producers
purpose of decomposers
decomposer

5. Consumers eat producers and other consumers. Producers make their own food
difference between producers and consumers
energy pyramid
if the part of the food chain is missing...then what happens?
4 types of producers

6. Several food chains that are connected
list 6 ecosystems
what organisms help each other
3 groups that make up the energy pyramid
food web

7. Producers take in carbon dioxide from the consumer
Step 4 of the carbon dioxide and oxygen cycle
difference between producers and consumers
what organisms help each other
purpose of decomposers

8. Producers - plant eaters - meat eaters
3 groups that make up the energy pyramid
habitat
consumer
list 6 ecosystems

9. They all die
food web
4 types of producers
if the part of the food chain is missing...then what happens?
Step 3 of the carbon dioxide and oxygen cycle

10. Consumers take in the oxygen that the producers make
the ONE thing all food that we eat comes from
Step 1 of the carbon dioxide and oxygen cycle
difference between producers and consumers
Step 2 of the carbon dioxide and oxygen cycle

11. Forest....plants and algae

12. The place where a plant or animal naturally lives or grows
habitat
difference between producers and consumers
the gas people breathe in...
producer

13. Several food chains that are connected
food web
3 groups that make up the energy pyramid
food chain
5 things all living things need to survive

14. Carbon dioxide
what gas do people breathe out
what organisms help each other
population
Step 1 of the carbon dioxide and oxygen cycle

15. All the members of a certain type of a living thing in an area
consumer
population
3 groups that make up the energy pyramid
producer

16. Tiger - bear - fox - wolf
4 types of consumers
decomposer
Step 2 of the carbon dioxide and oxygen cycle
if the part of the food chain is missing...then what happens?

17. 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?
food chain

18. An organism that makes it's own food
producer
the gas people breathe in...
carbon dioxide and oxygen cycle
if the part of the food chain is missing...then what happens?

19. A tapeworm and a human
where the world's oxygen supply comes from
Step 3 of the carbon dioxide and oxygen cycle
decomposer
where is one organism harmed and one helped?

20. Air - water - sun - shelter - food
population
ecosystem
list 6 ecosystems
5 things all living things need to survive

21. A squirrel and a nut
what organisms help each other
4 types of consumers
carbon dioxide and oxygen cycle
parasite

22. An organism that makes it's own food
the gas people breathe in...
Step 3 of the carbon dioxide and oxygen cycle
producer
the gas people breathe in...

23. The exchange of gasses between producers and consumers
if the part of the food chain is missing...then what happens?
carbon dioxide and oxygen cycle
Step 4 of the carbon dioxide and oxygen cycle
decomposer

24. Carbon dioxide
food chain
Step 2 of the carbon dioxide and oxygen cycle
what gas do people breathe out
where the world's oxygen supply comes from

25. All the living things in an ecosystem
carbon dioxide and oxygen cycle
list 6 ecosystems
community
consumer

26. The place where a plant or animal naturally lives or grows
habitat
4 types of producers
where the world's oxygen supply comes from
what organisms help each other

27. Tiger - bear - fox - wolf
4 types of consumers
the ONE thing all food that we eat comes from
the gas people breathe in...
consumer

28. Producers - plant eaters - meat eaters
carbon dioxide and oxygen cycle
energy pyramid
3 groups that make up the energy pyramid
habitat

29. Consumers take in the oxygen that the producers make
Step 2 of the carbon dioxide and oxygen cycle
what organisms help each other
difference between producers and consumers
purpose of decomposers

30. Oxygen
food web
consumer
the gas people breathe in...
3 groups that make up the energy pyramid

31. A series of organisims that depend on another for food
Step 4 of the carbon dioxide and oxygen cycle
4 types of consumers
host
food chain

32. Oxygen
the gas people breathe in...
purpose of decomposers
purpose of decomposers
Step 4 of the carbon dioxide and oxygen cycle

33. A tapeworm and a human
where is one organism harmed and one helped?
Step 4 of the carbon dioxide and oxygen cycle
the ONE thing all food that we eat comes from
energy pyramid

34. Consumers give off carbon dioxide
decomposer
Step 3 of the carbon dioxide and oxygen cycle
the ONE thing all food that we eat comes from
the gas people breathe in...

35. We need them because they break down dead plants and animals
difference between producers and consumers
purpose of decomposers
the ONE thing all food that we eat comes from
community

36. An organism that eats the producer and other consumers
the gas people breathe in...
consumer
Step 1 of the carbon dioxide and oxygen cycle
food chain

37. Plants
the ONE thing all food that we eat comes from
Step 3 of the carbon dioxide and oxygen cycle
where the world's oxygen supply comes from
5 things all living things need to survive

38. A diagram that shows how energy in an ecosystem is used
where is one organism harmed and one helped?
where the world's oxygen supply comes from
where is one organism harmed and one helped?
energy pyramid

39. An organism that breaks down plant and animal material
where the world's oxygen supply comes from
habitat
decomposer
energy pyramid

40. A squirrel and a nut
parasite
what organisms help each other
ecosystem
list 6 ecosystems

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

42. A series of organisims that depend on another for food
the ONE thing all food that we eat comes from
difference between producers and consumers
food chain
Step 1 of the carbon dioxide and oxygen cycle

43. All the living things in an ecosystem
community
what gas do people breathe out
host
3 groups that make up the energy pyramid

44. An organism that lives in or on another organism
parasite
if the part of the food chain is missing...then what happens?
5 things all living things need to survive
difference between producers and consumers

45. An organism that breaks down plant and animal material
food web
decomposer
Step 1 of the carbon dioxide and oxygen cycle
the ONE thing all food that we eat comes from

46. All the living and non living things in an environment
carbon dioxide and oxygen cycle
population
ecosystem
Step 4 of the carbon dioxide and oxygen cycle

47. The exchange of gasses between producers and consumers
decomposer
5 things all living things need to survive
community
carbon dioxide and oxygen cycle

48. Tundra - dessert - rain forest - ocean - pond - lake
where is one organism harmed and one helped?
what organisms help each other
list 6 ecosystems
4 types of producers

49. The organism a parasite lives on or in
Step 2 of the carbon dioxide and oxygen cycle
list 6 ecosystems
host
population

50. Producers take in carbon dioxide from the consumer
Step 4 of the carbon dioxide and oxygen cycle
decomposer
ecosystem
food chain