Which of these is NOT a good insulator of heat?
a) plastic b) metal c)wood
b)metal
100
Name 4 ways to produce heat.
Friction, Electricity, Mixing Chemicals, Burning
100
Material used to slow the movement of heat is called _________.
Insulation
100
Blankets, hats, and coats are all examples of conductors.
False
200
Water in a teapot is heated until boiling. Some of the water changes to____________________. What temperature must the water reach to boil?
Some of the water changes to steam. The water must reach 100 degrees Celsius.
200
Which of these items is the best insulator?
a) dried leaves b) plastic wrap c) foam blocks d) rock salt
c) foam blocks
200
How do stoves, ovens, and hair dryers work?
a) Electric current makes water move b) Moving water makes heat c)Electric current makes heat d) heat makes electric current
c) Electric current makes heat
200
What is it called when two objects are touching and heat is being transferred from the warmer object to the cooler object?
Conduction
200
Heat moves from cooler objects to warmer objects.
FASLE
300
What are the two scales on a thermometer called?
Celsius and Fahrenheit
300
What is the better combination to use when cooking?
a) metal pot and metal spoon b) metal pot and wooden spoon c)wooden pot and metal spoon d)wooden pot and wooden spoon
B) Metal pot and wooden spoon
300
If Sean stayed cool outside on a hot summer day, which color did he NOT have on?
a) blue b) yellow c) black d) white
c) black
300
Energy that moves particles of matter is____________.
Thermal Energy
300
Insulators keep cold things cold and hot things hot.
True
400
Which tools should you use to find out how long it takes a tray of ice to melt and reach a temperature of 10 degrees Celsius?
a) telescope and beaker b)watch and thermometer c) scale and thermometer d) watch and centimeter ruler
b) watch and thermometer
400
Why do metal pans often have wooden or plastic handles?
Wood does not conduct heat as well as metal.
400
A burning fire is an example of
a) electrical energy b)nuclear energy c) solar energy d) heat energy
d) heat energy
400
This device is used to control the temperature of a room.
A thermostat.
400
Calcium Chloride and water mixed together can produce heat.
TRUE
500
When the temperature of water is 0 degrees Celsius, the water is __________.
a) a liquid b) a solid c) a gas d) a vapor
b) a solid
500
On a sunny day, which takes the longest to get warm?
a)a sidewalk b) a lake c) sand d) rocks
b) a lake
500
Where does solar energy come from?
Solar energy comes from the sun.
500
Rubbing two objects together creates this__________.
Friction
500
When the temperature of something is high, that means it is very cold.