2. 3 rd Grade Science Review Carolina Fleming

3. Steps to the Scientific Method

4. Question Hypothesis Experiment Observation Conclusion

5. Question Hypothesis Experiment Observation Conclusion Quiet Hippos Eat Only Carrots!

6. Six Simple Machines

7. Lever A straight rod or board that pivots on a fulcrum

8. Pulley Wheel with a rope used to pull load up or down

9. Inclined Plane A sloping surface, such as a ramp

10. Wedge Two inclined planes joined back to back-used to cut

11. Screw An inclined plane wrapped around an axle

12. Wheel & Axle Wheel fastened to an axle that turn together

13. Food Chains

14. Producers - plants Producers - plants Consumers- Consumers- Herbivores eat only plants Carnivores eat only meats Omnivores eat both plants and meat Decomposers Decomposers

15. Complete the Food Chain Click here!!

16. Soil

17. provides the support and nutrients necessary for plant growth Soil… is a natural resource that should be conserved. Help take care of our Earth!

18. Soil is composed of rocks, clay, silt, sand and humus larger than clay but smaller than a sandclaysand + rocks clay ++ sand + humus =SOIL

19. Topsoil Ground level Subsoil Bedrock

20. Water Cycle

21. *The water cycle never stops! *It is driven by the power of the SUN *Water is essential for all living things!

22. There are 4 steps: E vaporation C ondensation P recipitation C ollection E-C-P-C

23. Evaporation Condensation Precipitation Collection