Test your basic knowledge |

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. Plants
where is one organism harmed and one helped?
food web
ecosystem
the ONE thing all food that we eat comes from

2. All the members of a certain type of a living thing in an area
what organisms help each other
population
difference between producers and consumers
decomposer

3. Forest....plants and algae

4. Producers take in carbon dioxide from the consumer
where is one organism harmed and one helped?
Step 4 of the carbon dioxide and oxygen cycle
food chain
if the part of the food chain is missing...then what happens?

5. A series of organisims that depend on another for food
decomposer
food chain
list 6 ecosystems
Step 3 of the carbon dioxide and oxygen cycle

6. An organism that breaks down plant and animal material
the ONE thing all food that we eat comes from
decomposer
4 types of consumers
purpose of decomposers

7. The place where a plant or animal naturally lives or grows
if the part of the food chain is missing...then what happens?
parasite
the ONE thing all food that we eat comes from
habitat

8. All the living and non living things in an environment
food web
producer
carbon dioxide and oxygen cycle
ecosystem

9. All the living things in an ecosystem
parasite
where is one organism harmed and one helped?
Step 2 of the carbon dioxide and oxygen cycle
community

10. Several food chains that are connected
food web
the ONE thing all food that we eat comes from
where the world's oxygen supply comes from
Step 3 of the carbon dioxide and oxygen cycle

11. Air - water - sun - shelter - food
5 things all living things need to survive
Step 1 of the carbon dioxide and oxygen cycle
energy pyramid
population

12. A series of organisims that depend on another for food
parasite
food chain
if the part of the food chain is missing...then what happens?
host

13. A diagram that shows how energy in an ecosystem is used
population
the ONE thing all food that we eat comes from
energy pyramid
where the world's oxygen supply comes from

14. Tundra - dessert - rain forest - ocean - pond - lake
5 things all living things need to survive
list 6 ecosystems
4 types of producers
decomposer

15. Consumers take in the oxygen that the producers make
consumer
Step 2 of the carbon dioxide and oxygen cycle
population
Step 4 of the carbon dioxide and oxygen cycle

16. An organism that eats the producer and other consumers
4 types of consumers
Step 2 of the carbon dioxide and oxygen cycle
the gas people breathe in...
consumer

17. Consumers eat producers and other consumers. Producers make their own food
4 types of producers
food chain
population
difference between producers and consumers

18. Oxygen
the ONE thing all food that we eat comes from
producer
the gas people breathe in...
where the world's oxygen supply comes from

19. Carbon dioxide
decomposer
Step 3 of the carbon dioxide and oxygen cycle
what gas do people breathe out
the gas people breathe in...

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

21. An organism that breaks down plant and animal material
Step 2 of the carbon dioxide and oxygen cycle
decomposer
if the part of the food chain is missing...then what happens?
Step 3 of the carbon dioxide and oxygen cycle

22. An organism that makes it's own food
producer
habitat
parasite
purpose of decomposers

23. Oxygen
the gas people breathe in...
host
if the part of the food chain is missing...then what happens?
if the part of the food chain is missing...then what happens?

24. Carbon dioxide
habitat
what organisms help each other
what gas do people breathe out
4 types of consumers

25. Producers - plant eaters - meat eaters
3 groups that make up the energy pyramid
decomposer
purpose of decomposers
food web

26. Tiger - bear - fox - wolf
4 types of consumers
host
parasite
4 types of producers

27. All the living things in an ecosystem
population
Step 1 of the carbon dioxide and oxygen cycle
4 types of consumers
community

28. The exchange of gasses between producers and consumers
consumer
4 types of consumers
Step 3 of the carbon dioxide and oxygen cycle
carbon dioxide and oxygen cycle

29. Tundra - dessert - rain forest - ocean - pond - lake
producer
where the world's oxygen supply comes from
food web
list 6 ecosystems

30. Producers give off oxygen as the make their own food
food web
population
population
Step 1 of the carbon dioxide and oxygen cycle

31. The exchange of gasses between producers and consumers
population
energy pyramid
Step 2 of the carbon dioxide and oxygen cycle
carbon dioxide and oxygen cycle

32. Consumers take in the oxygen that the producers make
the gas people breathe in...
Step 1 of the carbon dioxide and oxygen cycle
ecosystem
Step 2 of the carbon dioxide and oxygen cycle

33. An organism that lives in or on another organism
consumer
4 types of consumers
what gas do people breathe out
parasite

34. Forest....plants and algae

35. Consumers eat producers and other consumers. Producers make their own food
difference between producers and consumers
the ONE thing all food that we eat comes from
4 types of consumers
Step 4 of the carbon dioxide and oxygen cycle

36. A squirrel and a nut
what organisms help each other
energy pyramid
population
energy pyramid

37. They all die
5 things all living things need to survive
what organisms help each other
Step 1 of the carbon dioxide and oxygen cycle
if the part of the food chain is missing...then what happens?

38. The place where a plant or animal naturally lives or grows
carbon dioxide and oxygen cycle
where is one organism harmed and one helped?
where the world's oxygen supply comes from
habitat

39. Plants
host
the ONE thing all food that we eat comes from
consumer
carbon dioxide and oxygen cycle

40. Plant - grass - flower - trees
Step 3 of the carbon dioxide and oxygen cycle
if the part of the food chain is missing...then what happens?
purpose of decomposers
4 types of producers

41. All the members of a certain type of a living thing in an area
energy pyramid
Step 2 of the carbon dioxide and oxygen cycle
population
3 groups that make up the energy pyramid

42. Air - water - sun - shelter - food
energy pyramid
5 things all living things need to survive
where is one organism harmed and one helped?
if the part of the food chain is missing...then what happens?

43. A tapeworm and a human
where is one organism harmed and one helped?
4 types of producers
4 types of consumers
consumer

44. A diagram that shows how energy in an ecosystem is used
parasite
community
difference between producers and consumers
energy pyramid

45. Tiger - bear - fox - wolf
habitat
habitat
list 6 ecosystems
4 types of consumers

46. The organism a parasite lives on or in
food web
host
community
consumer

47. A squirrel and a nut
what organisms help each other
parasite
energy pyramid
Step 4 of the carbon dioxide and oxygen cycle

48. Consumers give off carbon dioxide
Step 3 of the carbon dioxide and oxygen cycle
where the world's oxygen supply comes from
Step 2 of the carbon dioxide and oxygen cycle
host

49. An organism that lives in or on another organism
parasite
consumer
what gas do people breathe out
where the world's oxygen supply comes from

50. An organism that eats the producer and other consumers
what gas do people breathe out
consumer
carbon dioxide and oxygen cycle
energy pyramid