Show:
Describing Matter
Measuring Matter
Changes in Matter
Energy and Matter
Vocabulary
100
All matter has _____________ and _________ properties.
chemical and physical
100
This is a measure of the force of gravity on an object.
What is weight?
100
Combustion, electrolysis, oxidation, and tarnishing are all examples of a ________________ change.
What is a chemical change?
100
When you throw a ball, the ball has ____________ energy.
What is kinetic energy?
100
This is a mixture where you can still see the different parts. Like if you mixed different kinds of sprinkles.
What is a heterogeneous mixture?
200
Melting temperature, freezing temperature, texture, the ability to dissolve in water and conduct electricity are all examples of _____________.
What are physical properties?
200
This is the unit that scientists measure mass in. Hint, the English unit for weight is the pound.
What is the gram (also accept kilogram)?
200
If you stomp on an empty soda can, you are performing a ______________ change on the can.
What is a physical change?
200
Microwaves, heat lamps, and the sun all give off this kind of energy.
What is electromagnetic energy?
200
A solution is an example of this kind of mixture.
What is a homogenous mixture?
300
Flammability, ability to rust, and ability to produce a new substance are all examples of ___________ properties.
What is are chemical properties?
300
_________does not change when gravity changes.
What is mass?
300
Chemical energy is a form of ______________ energy because it has stored energy.
What is potential energy?
300
________________ is a measure of the average energy of random motion of particles of matter.
What is temperature?
400
These are the three parts of an atom?
What are protons, neutrons, and electron?
400
These are the two units of volume we will be using most in this class? Hint, 1 _____ = 1 _____
What are the millimeter and cubic centimeter?
400
A chemical change produces _______ substances that have _____________ properties than those of the original substances.
new, different
400
This is the energy that comes from electrons moving from atom to atom.
What is electrical energy?
400
An exothermic change is different than an endothermic change because in an endothermic change, energy is _____________.
absorbed, taken in.
500
When atoms combine they form _______ ________. Atoms can combine to form larger particles called _______________.
chemical bonds molecules
500
How do you calculate the density of an object?
Density = mass/volume
500
The Law of ___________________ says that matter cannot be created or destroyed in a chemical change, only rearranged.
What is the Law of conservation of mass/matter?
500
Chemical energy is released when _________ __________ (what) are ___________.
chemical bonds, broken
500
_______ _________ is the total energy of all the particles in an object.
What is thermal energy?