1. Do you know how long a foot is?
MEASUREMENT
Do you know how long a foot is?

2. How big is a foot?
How do you know that it is that
Big?

3. What is the correct answer?
A foot is 30.5 centimeters.
What is the correct answer?
A foot is 3.05 decimeters.
Why is it difficult to change
From inches, to feet, to miles? #4

4. There are many ways to measure a foot…but in science we use SI units International System of Units also know as the metric system.

5. The International System of Units (SI or
Advantages of SI
The International System of Units (SI or
Metric) allows scientists in different countries
To share information.
When measuring length, volume, or mass the
Same prefixes are used when using SI
# 1&2

6. What unit is used to measure. length -. liquid volume -. mass –
What unit is used to measure length - liquid volume - mass – temperature -

7. What unit is used to measure length - meter
liquid volume - mass – temperature -

8. What unit is used to measure length - meter
liquid volume - liter
mass – temperature -

9. What unit is used to measure length - meter
liquid volume - liter
mass – gram
temperature -

10. What unit is used to measure length - meter
liquid volume - liter
mass – gram
temperature – degree Celsius

11. Use different size units for different quantities.
milliliters
kiloliters
kiloliters

12. Measurement – Converting from one unit to another
When going from a small unit to a large unit the decimal point moves left (this gives you a smaller number).
Example: 1000 m = 1 km
1,000
kilo
100
hecto K H 10
deca 1
(base unit)
meter, liter,or gram D
1/10
deci D
1/100
centi C
1/1000
milli U M
Kangaroos Hop Down Under Doing Cute Moves
When going from a large unit to a small unit the decimal point moves to the right (this gives you a larger number).
Example: 1 km = 1000 m

13. Calibrate the scale
Move weights to balance
Add the numbers from the 3 weights.

14. Graduated
cylinder

15. How to Measure a Test Tube
Diameter of mouth
(straight across)
Length
(top to bottom

16. How could you find out how much the liquid
Weighs?

17. How could you find out how much the liquid
Weighs?
Weigh cup when empty
Weigh cup with liquid
Subtract empty cup from
full cup.
Empty – 150 grams
Full -350 grams
350 – 150 = 200g for the liquid

19. Science: Significant Figures - Rules and Practice

20. Clean Up Lab Area
Put triple beam balance on back shelf.
Line up equipment as you found it.
Dry lab station with paper towel.
Sit down and make sure you know what is
Due for homework.