Transcript Lab Stations 21 - 30

Lab Stations 21 - 30
What Do You Already Know?
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.
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
22. How does radiant energy produce weather
on Earth?
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.
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!
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!
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).
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
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)
24. Organisms interact with eath other in a variety of
ways in an ecosystem. Describe as many interactions as
you can.
Autotrophs – makes food
Heterotrophs – eat food
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.
29. How are the objects in outer space
organized?
BY SIZE! Biggest to smallest
Universe
Galaxies
Solar systems
Planets (gas)
Planets (rocky)
Dwarf planet
Asteroids (comets)
The Universe
Galaxies
Solar System
Gas Giant Planets
Rock Planets
Dwarf Planets
Asteroids and Comets
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:
• Size
• Shape
• State of matter
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 :
• Burning
• Rusting
• Tarnishing
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.
28. Describe how rocks change over time. What
processes produce these changes?
The rock cycle:
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.
29. Give several examples of how organ systems work
together to maintain homeostasis in the human body.
29. Give several examples of how organ systems
work together to maintain homeostasis in the human
body.
29. Give several examples of how organ
systems work together to maintain homeostasis
in the human body.
Excratory System – rids the body of wastes.
29. Give several examples of how organ systems work
together to maintain homeostasis in the human body.
Endocrine System – controls hormones
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?