This week we are talking about weathering, the process that breaks down rock at Earth's surface. There are all kinds of things that contribute to weathering like ice, rain, heat and the amounts of oxygen and carbon dioxide in the atmosphere.
We are exploring the effects of mechanical and chemical weathering on limestone in our Rock Shake lab. Check out the video and see if you can see the difference between the two samples.
Thursday, October 14, 2010
Tuesday, October 5, 2010
Science Fair
This week students will get information on choosing a science fair question either from a pre-approved list or on their own.
Some great Earth Science questions are listed here.
You can access a copy of the Project Proposal Form that is due this week click -----> here.
The Variables and Hypothesis worksheet is available by clicking ------> here as well.
Some great Earth Science questions are listed here.
You can access a copy of the Project Proposal Form that is due this week click -----> here.
The Variables and Hypothesis worksheet is available by clicking ------> here as well.
Friday, October 1, 2010
Wednesday, September 29, 2010
Unit 3 Notes on Minerals
Fill out your guided notes from the slides below. When everyone at your table has them complete you will earn a reward.
Wednesday, September 15, 2010
Unit 2 Notes
Monday, April 19, 2010
Unit 7 Study Guide 2010
1. Friction is the force that opposes motion and transforms work into heat. Friction can be decreased by adding things like oil or water onto two surfaces that are rubbing together. Friction can be increased by adding things like sand or grit between two surfaces.
2. Know the three classes of levers:
1st Class— Fulcrum in the middle
2nd Class—Load (output force) is in the middle
3rd Class— Effort (input force) is in the middle
3. Power is work divided by _________ .
4. Work happens when an object is moved a distance by a force. If two forces are going the same direction they add together. If they are going opposite directions they will subtract from each other.
5. Machines make work easier.
6. Why do machines give us less work out than we put in? Where is our work going (what does it become)?
7. Efficiency compares the output of a machine to the input: Efficiency = output work/input work x 100%
8. How do you increase the Mechanical Advantage of a lever, pulley, and inclined plane?
9. Inclined planes (ramps) that are __________ have more Mechanical Advantage.
10. In a diagram, how do you know if forces are balanced or unbalanced?
Also, check out these videos of simple machines!!!
2. Know the three classes of levers:
1st Class— Fulcrum in the middle
2nd Class—Load (output force) is in the middle
3rd Class— Effort (input force) is in the middle
3. Power is work divided by _________ .
4. Work happens when an object is moved a distance by a force. If two forces are going the same direction they add together. If they are going opposite directions they will subtract from each other.
5. Machines make work easier.
6. Why do machines give us less work out than we put in? Where is our work going (what does it become)?
7. Efficiency compares the output of a machine to the input: Efficiency = output work/input work x 100%
8. How do you increase the Mechanical Advantage of a lever, pulley, and inclined plane?
9. Inclined planes (ramps) that are __________ have more Mechanical Advantage.
10. In a diagram, how do you know if forces are balanced or unbalanced?
Also, check out these videos of simple machines!!!
Monday, February 22, 2010
Sunday, February 21, 2010
Unit 6 Big Ideas
If you want to get a head start on preparing for the Unit 6 exam, try out this list of Big Ideas that you should be able to do or explain:
I can...
...tell you what sounds absolutely have to have in order to get from one place to the next.
...tell you about pitch--and how the frequency of a sound effects the pitch of the sound.
...explain what makes a microwave oven work.
...tell you about the electromagnetic spectrum.
...explain what electromagnetic waves are made of.
...list the seven general parts of the electromagnetic spectrum, in order, from longest wavelength to shortest wavelength and give an example or use of each.
...tell you what effect wavelength has on the frequency of an electromagnetic or sound wave.
...explain how wavelength is related to the amount of energy in an electromagnetic wave.
...tell you what is refraction of light and explain what causes refraction.
...list the colors that white light separates into when it refracts through a prism.
...list those colors in order from longest wavelength to shortest.
...tell what is reflecting off of objects that allows us to see them. HINT: THGIL spelled backwards.
...compare and contrast the similarities and differences of light and sound. (Including their speed, how they travel, type of wave, and how we perceive them.)
...remember that in order to test an idea it is a good idea to follow a format like:
Make a hypothesis: “IF I do _______________ , THEN I think _______________ will happen.”
Test the hypothesis: “I will change ____________ and record what happens. I will repeat it several times.”
Analyze the data: “I wrote down my observations in this chart and then made a graph.”
Make conclusions based on facts: “When I did _______ the measurement changed to ________, this proves/disproves my hypothesis as correct.”
You would always double check your measurement numbers (dependent variables) and keep all variables the same (controlled variables) except the one that you are testing (independent variables).
I can...
...tell you what sounds absolutely have to have in order to get from one place to the next.
...tell you about pitch--and how the frequency of a sound effects the pitch of the sound.
...explain what makes a microwave oven work.
...tell you about the electromagnetic spectrum.
...explain what electromagnetic waves are made of.
...list the seven general parts of the electromagnetic spectrum, in order, from longest wavelength to shortest wavelength and give an example or use of each.
...tell you what effect wavelength has on the frequency of an electromagnetic or sound wave.
...explain how wavelength is related to the amount of energy in an electromagnetic wave.
...tell you what is refraction of light and explain what causes refraction.
...list the colors that white light separates into when it refracts through a prism.
...list those colors in order from longest wavelength to shortest.
...tell what is reflecting off of objects that allows us to see them. HINT: THGIL spelled backwards.
...compare and contrast the similarities and differences of light and sound. (Including their speed, how they travel, type of wave, and how we perceive them.)
...remember that in order to test an idea it is a good idea to follow a format like:
Make a hypothesis: “IF I do _______________ , THEN I think _______________ will happen.”
Test the hypothesis: “I will change ____________ and record what happens. I will repeat it several times.”
Analyze the data: “I wrote down my observations in this chart and then made a graph.”
Make conclusions based on facts: “When I did _______ the measurement changed to ________, this proves/disproves my hypothesis as correct.”
You would always double check your measurement numbers (dependent variables) and keep all variables the same (controlled variables) except the one that you are testing (independent variables).
Monday, January 25, 2010
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