3rd Grade Science 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 exchange of gasses between producers and consumers
difference between producers and consumers
the ONE thing all food that we eat comes from
Step 3 of the carbon dioxide and oxygen cycle
carbon dioxide and oxygen cycle


2. Air - water - sun - shelter - food
what organisms help each other
community
5 things all living things need to survive
where the world's oxygen supply comes from


3. A series of organisims that depend on another for food
food chain
host
Step 2 of the carbon dioxide and oxygen cycle
population


4. Plants
food chain
the ONE thing all food that we eat comes from
parasite
community


5. Tundra - dessert - rain forest - ocean - pond - lake
3 groups that make up the energy pyramid
Step 3 of the carbon dioxide and oxygen cycle
Step 2 of the carbon dioxide and oxygen cycle
list 6 ecosystems


6. All the living and non living things in an environment
the gas people breathe in...
decomposer
ecosystem
3 groups that make up the energy pyramid


7. Forest....plants and algae


8. A series of organisims that depend on another for food
food chain
food web
the gas people breathe in...
Step 3 of the carbon dioxide and oxygen cycle


9. A tapeworm and a human
decomposer
producer
where is one organism harmed and one helped?
food web


10. Oxygen
3 groups that make up the energy pyramid
the gas people breathe in...
food web
where the world's oxygen supply comes from


11. An organism that lives in or on another organism
energy pyramid
4 types of consumers
3 groups that make up the energy pyramid
parasite


12. Plant - grass - flower - trees
where is one organism harmed and one helped?
carbon dioxide and oxygen cycle
4 types of producers
4 types of consumers


13. Plants
Step 2 of the carbon dioxide and oxygen cycle
4 types of producers
what gas do people breathe out
the ONE thing all food that we eat comes from


14. Several food chains that are connected
parasite
list 6 ecosystems
consumer
food web


15. Several food chains that are connected
community
difference between producers and consumers
food web
what organisms help each other


16. Tundra - dessert - rain forest - ocean - pond - lake
list 6 ecosystems
population
where the world's oxygen supply comes from
what organisms help each other


17. Tiger - bear - fox - wolf
4 types of consumers
decomposer
Step 3 of the carbon dioxide and oxygen cycle
where is one organism harmed and one helped?


18. The exchange of gasses between producers and consumers
Step 4 of the carbon dioxide and oxygen cycle
habitat
4 types of producers
carbon dioxide and oxygen cycle


19. All the members of a certain type of a living thing in an area
the gas people breathe in...
population
if the part of the food chain is missing...then what happens?
parasite


20. The organism a parasite lives on or in
where the world's oxygen supply comes from
where is one organism harmed and one helped?
4 types of producers
host


21. Carbon dioxide
Step 4 of the carbon dioxide and oxygen cycle
what gas do people breathe out
where is one organism harmed and one helped?
population


22. Consumers give off carbon dioxide
food web
Step 3 of the carbon dioxide and oxygen cycle
if the part of the food chain is missing...then what happens?
the gas people breathe in...


23. Producers take in carbon dioxide from the consumer
food web
ecosystem
population
Step 4 of the carbon dioxide and oxygen cycle


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


25. Producers take in carbon dioxide from the consumer
list 6 ecosystems
host
what gas do people breathe out
Step 4 of the carbon dioxide and oxygen cycle


26. Tiger - bear - fox - wolf
producer
where the world's oxygen supply comes from
4 types of consumers
population


27. An organism that makes it's own food
producer
difference between producers and consumers
5 things all living things need to survive
if the part of the food chain is missing...then what happens?


28. Carbon dioxide
the gas people breathe in...
what gas do people breathe out
3 groups that make up the energy pyramid
ecosystem


29. An organism that eats the producer and other consumers
what gas do people breathe out
host
consumer
5 things all living things need to survive


30. The place where a plant or animal naturally lives or grows
food chain
what gas do people breathe out
3 groups that make up the energy pyramid
habitat


31. Plant - grass - flower - trees
carbon dioxide and oxygen cycle
habitat
what organisms help each other
4 types of producers


32. We need them because they break down dead plants and animals
decomposer
if the part of the food chain is missing...then what happens?
what organisms help each other
purpose of decomposers


33. An organism that lives in or on another organism
parasite
4 types of consumers
what organisms help each other
food chain


34. Oxygen
5 things all living things need to survive
Step 1 of the carbon dioxide and oxygen cycle
the gas people breathe in...
parasite


35. An organism that eats the producer and other consumers
food chain
producer
consumer
what gas do people breathe out


36. Air - water - sun - shelter - food
habitat
decomposer
5 things all living things need to survive
where the world's oxygen supply comes from


37. An organism that makes it's own food
producer
habitat
consumer
food chain


38. All the members of a certain type of a living thing in an area
decomposer
energy pyramid
the ONE thing all food that we eat comes from
population


39. An organism that breaks down plant and animal material
decomposer
Step 4 of the carbon dioxide and oxygen cycle
5 things all living things need to survive
where the world's oxygen supply comes from


40. Producers give off oxygen as the make their own food
Step 1 of the carbon dioxide and oxygen cycle
energy pyramid
list 6 ecosystems
the gas people breathe in...


41. The place where a plant or animal naturally lives or grows
food web
habitat
parasite
5 things all living things need to survive


42. An organism that breaks down plant and animal material
decomposer
4 types of consumers
the ONE thing all food that we eat comes from
where is one organism harmed and one helped?


43. All the living things in an ecosystem
purpose of decomposers
community
difference between producers and consumers
where the world's oxygen supply comes from


44. Consumers eat producers and other consumers. Producers make their own food
purpose of decomposers
community
difference between producers and consumers
purpose of decomposers


45. Producers - plant eaters - meat eaters
3 groups that make up the energy pyramid
decomposer
carbon dioxide and oxygen cycle
producer


46. A tapeworm and a human
difference between producers and consumers
energy pyramid
where is one organism harmed and one helped?
food web


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


48. Consumers give off carbon dioxide
carbon dioxide and oxygen cycle
3 groups that make up the energy pyramid
Step 4 of the carbon dioxide and oxygen cycle
Step 3 of the carbon dioxide and oxygen cycle


49. They all die
food chain
if the part of the food chain is missing...then what happens?
food web
3 groups that make up the energy pyramid


50. Consumers eat producers and other consumers. Producers make their own food
what organisms help each other
difference between producers and consumers
where the world's oxygen supply comes from
if the part of the food chain is missing...then what happens?