1. metrics & temperature

2. mass Mass is how much matter is in an object 1 milligram = 0.001 gram 1 centigram = 0.01 gram 1 decigram = 0.1 gram 1 kilogram = 1000 grams

3. A US cent weighs exactly 2.5 g, while the nickel weighs exactly 5 g.

4. 1 liter of water weighs 1 kilogram, so 1 cubic meter — 1000 liters — of water weighs 1000 kilograms or 1 metric ton.

5. Volume: how much space an object takes up 1 milliliter = 0.001 liter 1 centiliter = 0.01 liter 1 deciliter = 0.1 liter 1 kiloliter = 1000 liters

6. A: The bottom of a concave meniscus. B: The top of a convex meniscus. Meniscus

8. length: how long something is 1 millimeter = 0.001 meter 1 centimeter = 0.01 meter 1 decimeter = 0.1 meter 1 kilometer = 1000 meters

10. Three temperature scales are in common use in science, industry & medicine. Two of those scales are SI metric: degree Celsius (°C) & kelvin (K). The 3 rd is the degree Fahrenheit scale (°F).

11. freezing (0) boiling temperatures of pure water (100) at 1 atm. degree Celsius (°C) scale

12. It is the experience of high altitude hikers that it takes longer to cook food at altitude because the boiling point of water is lower. if you try to cook an egg in boiling water while camping in the Rocky Mountains at an elevation of 10,000 feet, you will find that it takes longer for the egg to cook because water boils at only 90 degrees C at this elevation.

13. Raising or lowering the pressure by about 1 atm will change the boiling point by 1°C. if you add salt to water, its freezing point becomes lower

14. A degree Celsius memory device: Thirty is hot Twenty is nice Ten is cool Zero is ice

15. a healthy, resting adult human being is 98.6 °F (37.0 °C) Temperatures on this scale were at one time known as degrees centigrade, however it is no longer correct to use that terminology.

16. kelvin (K) The kelvin (K) temperature scale is an extension of the degree Celsius scale down to absolute zero, a hypothetical temperature characterized by a complete absence of heat energy. Temperatures on this scale are called kelvins, NOT degrees kelvin, kelvin is not capitalized, and the symbol (capital K) stands alone with no degree symbol.

19. Temperature conversions between the three temperature scales:

20. degree Fahrenheit / degree Celsius conversions (exact): degree F = (degree C x 1.8) + 32. degree C = (degree F - 32) / 1.8

21. Temperature conversion problems 1.20 degrees C = _________degrees F 2.105 degrees F = _________degrees C 3.12 degrees C = _________degrees F 4.115 degrees F = _________ K 5.30 degrees C = ____________ K 6.515 K = ____________ degrees F 7.389 K = ____________ degrees C 8.212 degrees F = __________ degrees C

22. time The following conversions are useful when working with time: 1 minute = 60 seconds 1 hour = 60 minutes = 3600 seconds 1 day = 24 hours 1 week = 7 days 1 year = 365 1/4 days (for the Earth to travel once around the sun)