monday, september 24th

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Monday, September 24th Science Starter: 1. What does the word phenomenon mean? 2. Now use the word phenomenon in a sentence to describe the whirligig.

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Monday, September 24th. Science Starter: 1. What does the word phenomenon mean? 2. Now use the word phenomenon in a sentence to describe the whirligig. . Planning Guide P. 44. Question- What question are you investigating in this experiment? - PowerPoint PPT Presentation

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Page 1: Monday, September 24th

Monday, September 24th• Science Starter:

1. What does the word phenomenon mean?

2. Now use the word phenomenon in a sentence to describe the whirligig.

Page 2: Monday, September 24th

Planning Guide P. 44Question- • What question are you investigating in

this experiment?How does the length of a whirligig’s blades affect the

time it takes the whirligig to fall to the ground?How does the number of paper clips on the

whirligig’s stem affect the time it takes the whirligig to fall to the ground?

Prediction-• What do you think is going to

happen? Why do you think that?

Page 3: Monday, September 24th

Planning Guide P. 44

Variable Identification- • What part will you be changing?• Which variable will you change?• What conditions and procedures will you

keep the same? (control)• What will you measure?• How many trials will you do?

Page 4: Monday, September 24th

Planning Guide P. 44Procedure & Data- Write detailed

instructions and include . . .• How you will set up the whirligig• How you drop it• How you measure it’s performance• How you record the data• How many trials

Page 5: Monday, September 24th

Tuesday, September 25th

Science Starter:

1. What is the mean (average) for the following data? 5, 10, 3, 4, 3, 3.

2. What is the median for the following data? 5, 10, 3, 4, 3, 3

3. Define the following:– Interpret– Trend – Claim

Page 6: Monday, September 24th

Wednesday, September 26th

Science Starter: 1. What is a variable?

2. What is the difference between a dependent and independent variable?(P 51) 3. How do you make a test, a “fair test”? P 49

Page 7: Monday, September 24th

Poster Requirements

1. The question you are trying to answer2. Your predictions3. Your procedure and what makes it a fair test4. Your results and your confidence in them5. You interpretation of results

Page 8: Monday, September 24th

Thursday, September 27thA fertilizer company was experimenting with a new

type of fertilizer. The company used 5 different types of plants that require the same amount of water and light: tomato plant, green Ivy, Aloe plant, Peace Lilly, & plumbago. They are all in the same soil and are given the same water amount.

• 1-Identify the independent variable(s)?• 2-Identify the dependent variable(s)?• 3-What could the plant company do to make the

test even more fair? (HINT: think about adding more variables)

Page 9: Monday, September 24th

Friday, September 28th

Science Starter:

• Define the following– Force– Gravity– Drag

Page 10: Monday, September 24th

Whirligig Science• Gravity pulls down.

Gravity = 9.8m/s• More paper clips = larger mass. • Larger mass = larger pull. • Larger pull = faster fall.

http://www.brainpop.com/science/motionsforcesandtime/gravity/

Page 11: Monday, September 24th

Whirligig Science• Air resistance pushes up.• Longer wing span = more

surface area. • More surface area = more air

resistance. (collisions between molecules).

• More air resistance = greater push up.

• Greater push up = slower fall.

Page 12: Monday, September 24th

But what about a feather Ms. Fike?

Vacuum meaning an area with low air pressure like outer space.

Page 13: Monday, September 24th

4th Blk Enrichment

• F=m*a Newton’s 2nd law of motion• Force= Mass times AccelerationIf a ball is falling off a building what will

be the force of impact on the ground?Mass of the ball is 100gramsThe ball is acceleration at 5 meters per

second What is the force?

Page 14: Monday, September 24th

F=M*AAnswer: 500 m/s2

Try this one on your own!

Page 15: Monday, September 24th

Answer: 100 m/s2