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. Plant - grass - flower - trees
4 types of producers
habitat
list 6 ecosystems
the gas people breathe in...

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

3. Air - water - sun - shelter - food
5 things all living things need to survive
the gas people breathe in...
4 types of consumers
population

4. A diagram that shows how energy in an ecosystem is used
purpose of decomposers
energy pyramid
Step 2 of the carbon dioxide and oxygen cycle
host

5. Plants
Step 3 of the carbon dioxide and oxygen cycle
what organisms help each other
the ONE thing all food that we eat comes from
parasite

6. The place where a plant or animal naturally lives or grows
4 types of producers
parasite
4 types of consumers
habitat

7. Plant - grass - flower - trees
decomposer
if the part of the food chain is missing...then what happens?
Step 2 of the carbon dioxide and oxygen cycle
4 types of producers

8. An organism that eats the producer and other consumers
4 types of producers
consumer
Step 4 of the carbon dioxide and oxygen cycle
purpose of decomposers

9. An organism that eats the producer and other consumers
list 6 ecosystems
carbon dioxide and oxygen cycle
habitat
consumer

10. The organism a parasite lives on or in
host
if the part of the food chain is missing...then what happens?
food chain
community

11. Consumers eat producers and other consumers. Producers make their own food
food web
the gas people breathe in...
what gas do people breathe out
difference between producers and consumers

12. A diagram that shows how energy in an ecosystem is used
if the part of the food chain is missing...then what happens?
energy pyramid
4 types of consumers
carbon dioxide and oxygen cycle

13. All the members of a certain type of a living thing in an area
population
5 things all living things need to survive
food web
where is one organism harmed and one helped?

14. Several food chains that are connected
purpose of decomposers
food web
habitat
what organisms help each other

15. Tundra - dessert - rain forest - ocean - pond - lake
4 types of producers
list 6 ecosystems
decomposer
Step 1 of the carbon dioxide and oxygen cycle

16. An organism that breaks down plant and animal material
3 groups that make up the energy pyramid
Step 3 of the carbon dioxide and oxygen cycle
decomposer
energy pyramid

17. A squirrel and a nut
decomposer
host
purpose of decomposers
what organisms help each other

18. Tiger - bear - fox - wolf
4 types of consumers
carbon dioxide and oxygen cycle
the gas people breathe in...
where the world's oxygen supply comes from

19. Forest....plants and algae

20. Oxygen
the ONE thing all food that we eat comes from
if the part of the food chain is missing...then what happens?
the gas people breathe in...
decomposer

21. 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
the ONE thing all food that we eat comes from
community

22. Producers give off oxygen as the make their own food
if the part of the food chain is missing...then what happens?
Step 1 of the carbon dioxide and oxygen cycle
decomposer
habitat

23. A squirrel and a nut
decomposer
what organisms help each other
the ONE thing all food that we eat comes from
parasite

24. Tiger - bear - fox - wolf
4 types of consumers
what gas do people breathe out
ecosystem
decomposer

25. Oxygen
carbon dioxide and oxygen cycle
Step 2 of the carbon dioxide and oxygen cycle
what gas do people breathe out
the gas people breathe in...

26. An organism that lives in or on another organism
parasite
what gas do people breathe out
energy pyramid
ecosystem

27. Several food chains that are connected
producer
the ONE thing all food that we eat comes from
food web
population

28. They all die
Step 3 of the carbon dioxide and oxygen cycle
4 types of consumers
where is one organism harmed and one helped?
if the part of the food chain is missing...then what happens?

29. An organism that lives in or on another organism
decomposer
parasite
purpose of decomposers
what organisms help each other

30. All the living things in an ecosystem
habitat
what gas do people breathe out
4 types of producers
community

31. Carbon dioxide
habitat
what gas do people breathe out
the ONE thing all food that we eat comes from
difference between producers and consumers

32. Consumers give off carbon dioxide
carbon dioxide and oxygen cycle
difference between producers and consumers
Step 3 of the carbon dioxide and oxygen cycle
Step 4 of the carbon dioxide and oxygen cycle

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

34. The place where a plant or animal naturally lives or grows
5 things all living things need to survive
habitat
Step 1 of the carbon dioxide and oxygen cycle
Step 3 of the carbon dioxide and oxygen cycle

35. The organism a parasite lives on or in
ecosystem
host
habitat
5 things all living things need to survive

36. Consumers take in the oxygen that the producers make
Step 2 of the carbon dioxide and oxygen cycle
what organisms help each other
4 types of consumers
4 types of consumers

37. Producers take in carbon dioxide from the consumer
purpose of decomposers
5 things all living things need to survive
4 types of consumers
Step 4 of the carbon dioxide and oxygen cycle

38. Plants
Step 2 of the carbon dioxide and oxygen cycle
food chain
the ONE thing all food that we eat comes from
energy pyramid

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

40. All the members of a certain type of a living thing in an area
population
food chain
purpose of decomposers
4 types of consumers

41. A tapeworm and a human
where is one organism harmed and one helped?
carbon dioxide and oxygen cycle
Step 2 of the carbon dioxide and oxygen cycle
community

42. All the living and non living things in an environment
population
Step 4 of the carbon dioxide and oxygen cycle
the ONE thing all food that we eat comes from
ecosystem

43. Producers - plant eaters - meat eaters
population
Step 1 of the carbon dioxide and oxygen cycle
3 groups that make up the energy pyramid
ecosystem

44. An organism that breaks down plant and animal material
difference between producers and consumers
decomposer
host
Step 3 of the carbon dioxide and oxygen cycle

45. A series of organisims that depend on another for food
difference between producers and consumers
difference between producers and consumers
food chain
what organisms help each other

46. They all die
parasite
the ONE thing all food that we eat comes from
what organisms help each other
if the part of the food chain is missing...then what happens?

47. Carbon dioxide
energy pyramid
what gas do people breathe out
list 6 ecosystems
where is one organism harmed and one helped?

48. Forest....plants and algae

49. A tapeworm and a human
host
where is one organism harmed and one helped?
ecosystem
the gas people breathe in...

50. Producers take in carbon dioxide from the consumer
Step 4 of the carbon dioxide and oxygen cycle
list 6 ecosystems
energy pyramid
purpose of decomposers