1. Do you know how long a foot is?

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

3. A foot is 30.5 centimeters. A foot is 3.05 decimeters.

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

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

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

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

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

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

11. 1,000 kilo 100 hecto 10 deca 1 (base unit) meter, liter,or gram 1/10 deci 1/100 centi 1/1000 milli When going from a large unit to a small unit the decimal point moves to the right (this gives you a larger number). 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 Example: 1 km = 1000 m K angaroos H op D own U nder D oing C ute M oves K H D U D C M

12. 1.Calibrate the scale 2.Move weights to balance 3.Add the numbers from the 3 weights.

13. Graduated cylinder

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

15. 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

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

17. How could you find out how much the liquid Weighs? 1.Weigh cup when empty 2.Weigh cup with liquid 3.Subtract empty cup from full cup. Empty – 150 grams Full -350 grams 350 – 150 = 200g for the liquid

18. Clean Up Lab Area 1.Put triple beam balance on back shelf. 2.Line up equipment as you found it. 3.Dry lab station with paper towel. 4.Sit down and make sure you know what is Due for homework.