Show:
Physical and Chemical Changes
Energy
Substances, Elements, & Mixtures
Mass, Volume, and Density
Random
100
Physical or Chemical Change: Dissolving salt in water
What is a physical change.
100
The energy of matter in motion is called...
What is kinetic energy.
100
True or False. Table salt is an example of a pure substance.
What is true.
100
The measurement of the force of gravity on an object is..
What is weight.
100
Two or more atoms held together by chemical bonds is called....
What is a molecule.
200
Physical or Chemical Change? burning wood
What is a chemical change.
200
Radio waves and X rays are different types of this kind of energy...
What is electromagnetic energy.
200
Substances that CANNOT be broken down chemically into other substances are called...
What is elements.
200
The measurement of how much mass is contained in a given volum is called....
What is density.
200
This is the equation for Density.
What is mass/volume.
300
True or False A chemical change produces new substances.
What is true
300
In photosynthesis, plants transform electromagnetic energy into this kind of energy.
What is chemical energy.
300
Substances that are NOT chemically combined form a....
What is mixture.
300
In a laboratory, mass is often measured with a...
What is a triple beam balance.
300
The volume of an object with a density of 4 g/cm3 and a mass of 28g is....
What is 7cm3.
400
True or False. A substance that undergoes a physical change is still the same substance after the change.
What is True
400
The internal energy stored in the bonds between atoms is this type of energy.
What is chemical energy.
400
The smallest particle of an element is called this.
What is an atom.
400
The SI unit for mass is...
What is kilogram.
400
H20 is an example of a...
What is a chemical formula.
500
The law that states that matter is neither created nor destroyed during chemical or physical changes.
What is the law of conservation of mass.
500
A rubber band pulled tight and about to snap has this type of energy.
What is potential.
500
In this type of mixture, the separate parts are easily identified.
What is heterogenous mixture.
500
True or False. An object that floats on water has a greater density than water.
What is false.
500
Texture and color are examples of this type of property.
What is physical.