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3. 100 200 100 400 300 200 100 400 300 200 100 400 300 200 400 300 4 th Grade Life Science 5 th Grade Life Science 4 th Grade Earth Science 5 th Grade Earth Science 100 200 300 400 5 th Grade Physical Science

4. 100 Which type of organism is always the first step in a food chain? Producer Click here for answer back

5. 200 Why are green plants and algae called ”producers”? back Click here for answer They make food by photosynthesis.

6. 300 back Click here for answer The sun What is the main source of energy entering most food webs?

7. 400 In which type of ecosystem are protists often the main producers? back Click here for answer Water ecosystems

8. 100 What organ stores urine? back Click here for answer the bladder

9. 200 Waste leaves the body through the- back Click here for answer colon

10. 300 When blood leaves the lungs, what is it carrying? back Click here for answer Oxygen

11. 400 When blood is pumped by the heart to the lungs, what is it carrying? back Click here for answer Carbon dioxide

12. 100 What happens to rocks when they are frozen and thawed again and again? back Click here for answer They break down into smaller pieces.

13. 200 What erodes rocks and land the most? back Click here for answer Moving water.

14. 300 A glacier changes landscape mostly by− back Click here for answer moving large amounts of dirt.

15. 400 Grooves cut into bedrock are most likely a result of - back Click here for answer a glacier.

16. 100 Which action would turn water vapor into a liquid? back Click here for answer cooling it

17. 200 How do vascular plants transport water and nutrients? back Click here for answer Through tubes called xylem

18. 300 What happens to liquid water if it is cooled below its freezing point? back Click here for answer It turns into a solid.

19. 400 In the water cycle, solar energy causes which change? back Click here for answer Condensation to precipitation

20. 100 What do scientists use to measure the volume of an irregular object? back Click here for answer A graduated cylinder

21. 200 What characteristic was used to arrange the elements in the Periodic Table of the Elements? back Click here for answer The number of protons, which is the atomic number.

22. 300 If an object’s density is less than one gram per milliliter, then when it is dropped in water it will - back Click here for answer float.

23. 400 Copper that has been hammered into a sheet is an example of what kind of change? back Click here for answer Physical change