Heat Test only
Mrs. Foster's Science 8 Test
Terms in this set (31)
Allows heat to pass through it. Metal.
Doesn't allow heat to pass through it. Styrofoam
heat energy travels in waves, can travel through space (sunlight, heat) or the air. (air is warm near the fireplace, sunlight is warm)
Energy passed from one molecule to the next. The closer the molecules, the easier it is for the energy to move. Example: Heat passes from hot tea to the metal spoon.
Hot liquid and gas is less dense. Cold liquid and gas is more dense. Hot rises, cold sinks, creating a circular motion or current. (Example hot lava makes volcano, air & water currents)
Thermal energy given off. The amount of kinetic energy in something.
How heat energy is measured. A number on a scale.
calorie (small c)
A measurement of heat energy
calorie (large C)
A measurement of food energy
Our bodies take this in, and turn it into energy.
The amount of heat needed to raise 1 gram of a substance 1 degree celcius.
Specific Heat of water is
one calorie per gram!!
This is what matter takes up.
This cannot be created or destroyed
What are the six types of energy?
Heat, Sound, Light, Mechanical, Chemical, Nuclear
Parts of a bunsen burner
barrel, gas supply, air supply, gas inlet
Hottest part of the flame
The inner blue part
How many states of matter are there?
Four. Solid, liquid, gas, plasma.
This is what energy does.
two states of energy
potential (stored up, like a battery, or acorn), and kinetic (moving, like a dropped ball)
1 C (big c) food calories equals
1000 c (heat calories) equals
When things are heated, they do what?
Expand, get bigger.
When things are cooled, they do what?
Contract, shrink, get smaller.
Can you draw convection currents?
Remember the food coloring in the bottles? Colored hot water on the bottom, cold clear water on top. What happened? Use arrows to show the movement of the water and the _________ _____________.
Everything in the world is either...
matter or energy
Can you explain how you did the Pringle lab?
Using words like: calorimeter set up, temperature, calorie, heat, splint, etc.
Celcius temperature scale
Based on the freezing and boiling points of water. Used in science.
How convection makes islands, mountains, and volcanos
Hot molten lava is less dense. It rises up through cracks in the earth's crust, cooling and hardening when it reaches the water or the air.
Based on freezing point of a mixture of salt and water. Used only in US.
Based on absolute zero, the temperature at which all molecular motion stops. Used in science.
A way to measure the amount of heat energy stored in food.