Toyota Camry. Jeep Cherokee. Ford F-series pickup. Death

1
Part 1 review areas and volumesPart 2 What
is science? An important aspect science needs
to be based on data!
2
Approximately how many marbles will fit into the
ball?

• 200
• 400
• 600
• 800
• 1,000

3
Two circles have a ratio of 2 to 1 in size
(radius).What is the ratio of their areas?

• 2 to 1
• 3 to 1
• 4 to 1
• 8 to 1
• 2p to 1

4
Two circles have a ratio of 2 to 1 in size
(radius).What is the ratio of their areas?

• 2 to 1
• 3 to 1
• 4 to 1
• 8 to 1
• 2p to 1

5
Two spheres have a ratio of 2 to 1 in size
(radius).What is the ratio of their surface
areas?

• 2 to 1
• 4 to 1
• 8 to 1
• 4p to 1
• 8p to 1

6
Two spheres have a ratio of 2 to 1 in size
(radius).What is the ratio of their volumes?

• 2 to 1
• 4 to 1
• 8 to 1
• 4p to 1
• 8p to 1

7
If it takes 5 oz. of paint to paint thesmaller
frog, howmuch paint is needed to paint the
larger one?

• About 12 oz.
• 10 oz
• 15 oz
• 5 p
• None of the above

8
Suppose you take a piece of wood and split it
into smaller pieces. What happens to the surface
area to volume ratio?

• It gets larger
• It gets smaller
• It stays the same

9
Suppose you take a piece of wood and split it
into smaller pieces. What happens to the surface
area to volume ratio?

• It gets larger
• It gets smaller
• It stays the same

10
Which cools faster, a cake, or a
cupcake?Which cools faster, a small planet or a
large one?Why?
11

• What is science?
• Science is a process of trying to understand the
  world by making models (or theories) which have
  predictive power. It usually involves
• Observing
• Looking for patterns (which can be clues to
  underlying laws)
• This may involve
• - Sorting
• - Classifying
• - Measuring
• Suggesting an explanation (hypothesis) which
  explains all the observations made so far AND
  predicts new ones
• Making an experiment or collecting more data
  which tests the prediction
• (If the experiment fails) Suggesting another
  hypothesis, and trying another experiment....
• Telling others what you have discovered.
• Science is a way of trying not to fool yourself
  
• -Richard Feynman

12
Science is a way of trying not to fool yourself
-Richard Feynman
13
Which vehicle is safer to drive?

• Toyota Camry
• Jeep Cherokee
• Ford F-series pickup

14
Deaths Per Year / Per Million Vehicles
15
If you are African-American in the US today,
which job are you more likely to have?1 -
Sports (playing or coaching)2 Science and
engineering (including medicine).

• A. 1 is more likely
• B. 2 is more likely
• C. About the same
• D. 2 is ten times more likely than 1

16
If you are African-American in the US today,
which job are you more likely to have?1 -
Sports (playing or coaching)2 Science and
engineering (including medicine).

• A. 1 is more likely
• B. 2 is more likely
• C. About the same
• D. 2 is ten times more likely than 1

17
Science needs to be based on data, you cant just
guess!