1. Independent and Dependent Variable

2. Scientific Method

3. Engineers

4. Adaptive Engineering

5. Assistive Engineering

6. Producers

7. Consumers

8. Decomposers

9. Scavengers

10. Food Chain

11. Food Web

12. Desert

13. Tropical Rain Forest

14. Tundra

15. Deciduous Forest

16. Coniferous Forest

17. Grassland

18. Coral Reef

19. Estuary

20. Comets

21. Asteroids

22. Moon

23. The closer an object is the bigger it appears!
Distance
The closer an object is the bigger it appears!

24. A rotation (Spin) is equal to 24 hours or 1 day.

25. Moon phases

26. Revolution
A revolution is equal to days around the sun. It equals one year.

27. 29.5 days or about one month for the moon to orbit around the Earth.
Lunar Cycle
29.5 days or about one month for the moon to orbit around the Earth.

28. Tides

29. Seasons in the Northern Hemisphere

30. Solar Eclipse

31. Lunar Eclipse

32. Heat convection

33. Wind

34. High and Low Pressure

35. Barometer

36. Wind Vane

37. Anemometer

38. Psychrometer

39. Potential Energy

40. Kinetic Energy

41. Law of Conservation
Energy cannot be created nor destroyed but only change form.

42. Simple circuits