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Lab Stations 21 - 30 What Do You Already Know?. 21. Diagram the electromagnetic spectrum. Label where wavelengths are short, and where frequencies are.

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Presentation on theme: "Lab Stations 21 - 30 What Do You Already Know?. 21. Diagram the electromagnetic spectrum. Label where wavelengths are short, and where frequencies are."— Presentation transcript:

1 Lab Stations What Do You Already Know?

2 21. Diagram the electromagnetic spectrum. Label where wavelengths are short, and where frequencies are high and low. Describe the uses of the various EM waves. electromagnetic spectrumelectromagnetic spectrum

3 21. Diagram the electromagnetic spectrum. Label where wavelengths are short, and where frequencies are high and low. Describe the uses of the various EM waves. Radio Waves – communication : cell phones, TV and radio Microwaves – cook, cell phones, cameras, satellite photos of stars. Infrared – night vision and remote controls Visible light – to see! UV Rays – killing germs and sterilization X Rays – detect breaks in bones Gamma Rays - targeting and killing cancer cells and sterilization

4 22. How does radiant energy produce weather on Earth? weather Radiant energy is absorbed by the land and water. The energy is then conducted to the air touching the land and water. The energy is also convected higher into the air by density. The energy is also convected higher into the air by density.

5 23. What causesthe change of seasons? What causes the moon to change phases? What causes tides? The Earth’s 23 Degree TILT causes the change of seasons! seasons

6 23. What Causes the change of seasons? What causes the moon to change phases? What causes tides? The moon revolves around the Eart and Earth casts a shadow on it. You may remember the song! shadow song shadow song

7 23. What Causes Seasons? What causes the moon to change phases? What causes tides? Tides are caused by the pull from the Moon (mostly) and the Sun (little bit).

8 24. Organisms interact with eath other in a variety of ways in an ecosystem. Describe as many interactions as you can. 1. Predator / Prey – one eats the other. Mutualism – everyone benefits

9 24. Organisms interact with eath other in a variety of ways in an ecosystem. Describe as many interactions as you can. Commensualism – only one benefits (the other doesn’t care) Parasitism – only 1 benefits (the other is harmed)

10 24. Organisms interact with eath other in a variety of ways in an ecosystem. Describe as many interactions as you can. interactions Autotrophs – makes food Heterotrophs – eat food

11 25. Organisms are made of atoms. Rocks are made of atoms, too. Describe the differences in the way atoms are organized in organisms compared to rocks. Organization of atoms in living things Organization of atoms in non living things Pretty much just atoms – non living things don’t have cells.

12 29. How are the objects in outer space organized? BY SIZE! Biggest to smallest UniverseGalaxies Solar systems Planets (gas) Planets (rocky) Dwarf planet Asteroids (comets )

13 The Universe

14 Galaxies

15 Solar System

16 Gas Giant Planets

17 Rock Planets

18 Dwarf Planets

19 Asteroids and Comets

20 27. Compare and contrast chemical and physical changes of matter. Give examples of each. Physical changes – changes that DO NOT involve creating new substances. Examples: SizeSize ShapeShape State of matterState of matter

21 27. Compare and contrast chemical and physical changes of matter. Give examples of each. Chemical Changes – changes that result in a NEW SUBSTANCE being formed. Examples : BurningBurning RustingRusting TarnishingTarnishing

22 28. Describe how rocks change over time. What processes produce these changes? Sediments cement in to rocks. Rocks weather in to sediment. Lava cools and becomes igneous rocks. Rocks re melt and return to being lava. Intense heat and pressure metamorphasize sedimentary and igneous rocks.

23 28. Describe how rocks change over time. What processes produce these changes? The rock cycle: rock cyclerock cycle

24 29. Give several examples of how organ systems work together to maintain homeostasis in the human body. Circulatory system – pumps food and water to body.

25 29. Give several examples of how organ systems work together to maintain homeostasis in the human body.

26 Excratory System – rids the body of wastes.

27 29. Give several examples of how organ systems work together to maintain homeostasis in the human body. Endocrine System – controls hormones

28 30. Design an experiment to test the following hypothesis: If different white and black T-shirts are compared, then the black T-shirts will provide more UV radiation protection. What is the Independent Variable? What is the dependent variable? How would you prove it?


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