Describing Matter
Which of the following is NOT a property of matter?
A) Color
B) Density
C) Happiness
D) Volume
C. Happiness
What tool is used to measure temperature?
Thermometer
Give an example of a physical change.
Cutting paper, painting, etc.
What are the four states of matter?
solid, liquid, gas, plasma
Boiling water is an example of what kind of change?
Physical
What is matter?
Anything that has mass and takes up space.
What unit is commonly used to measure mass?
gram
Give an example of a chemical change.
Bleach in food coloring, vinegar and baking soda, rust, flammability, etc.
Which state of matter has an indefinite shape and an indefinite volume?
Gas
Which of the following best describes a heterogeneous mixture?
A) The components are evenly distributed.
B) The components can be easily distinguished.
C) The composition is always the same.
D) It cannot be separated by physical means.
B.
What is the term for the amount of space an object occupies?
Volume
What tool is used to measure liquid volume?
Graduated Cylinder
What happens in an exothermic change?
Energy (in the form of heat) is released.
Describe the particles in a liquid.
Close together, but with enough room to slide over one another.
Name a liquid with LOW viscosity.
water, soda, juice, etc.
What is an example of a physical property of matter?
Color, size, luster, flexibility, etc.
Which measurement would you use to find the volume of an irregular object?
Water Displacement
Which property can be observed without changing the substance?
Physical Property
What property do ALL liquids share?
Definite volume
What is the main difference between a compound and a mixture?
Compounds are chemically combined, mixtures are not.
Which type of mixture is evenly mixed throughout (you cannot see the separate parts)?
Homogeneous
Convert 4670mg to grams.
4.67 grams
What must occur in order to see a chemical property?
A chemical reaction.
What happens to the particles in a solid when it is heated?
The speed up and move apart.
What is the density of an object with a mass of 30 grams and a volume of 15 cubic centimeters?
2 g/cm^3