1. What you need to know about heat. Some materials conduct heat better than others A thermal conductor (heat conductor) is a material that conducts heat well and quickly. Metals are good thermal conductors. A thermal insulator (heat insulator) is a material that does not conduct heat well. Plastics, wood, cork and some fabrics are good thermal insulators.

6. Units smaller than a meter have Latin prefixes: Deci means 10; 10 decimeters make a meter. Centi means 100; 100 centimeters make a meter. Milli means 1,000; 1,000 millimeters make a meter. Units larger than a meter have Greek prefixes: DeKa means 10; a dekameter is 10 meters. Hecto means 100; a hectometer is 100 meters. Kilo means 1,000; a kilometer is 1,000 meters.

7. The Metric System Length 0.001 Meters Millimeter (mm) 0.01 Meters Centimeter (cm) 0.1 Meter Decimeter (dm) 1 Meter Meter (m) 10 Meters Dekameter (dam) 100 Meters Hectometer (hm) 1,000 Meters Kilometer (km) Value Unit

8. Capacity * 1 liter + U.S. 1.057 quarts 0.001 Liters Milliliter (ml) 0.01 Liters Centiliter (cl) 0.10 Liters Deciliter (dl) 1 Liter (*) Liter (l) 10 Liters Dekaliters (dal) 100 Liters Hectoliters (hl) 1,000 Liters Kiloliter (kl) Value Unit