Chapter 2 Basics
Define Matter.
Anything that has mass and takes up space.
List 2 chemical properties.
Flammability and reactivity.
Liquids have a volume that is fixed, but a shape that can change. T/F
True.
All matter is made up of atoms and molecules. T/F
True
Define Mass.
How much matter something has.
List 5 physical changes.
Color, magnetism, solubility, density, electrical/thermal conductivity, state of matter, etc.
What are properties that are the same regardless of the size of the sample?
Characteristic properties.
Solids have a fixed shape and volume and gases have a changeable shape and volume. T/F
True.
Define Volume.
How much space something takes up.
Change in color/odor, seeing a new substance, new light, new sound, change in temperature, fizzing/bubbling, etc.
If Butter cup has a mass of 8000g and a volume of 2000 cm3 , what is her density?
4000 g/cm3
Gases are made of particles that are the closest and solids are made of particles that are the farthest apart. Liquids are in the middle. T/F
False.
If a tissue box is 5 cm tall, 15 cm long, and 5 cm wide, what is its volume?
375 cm3
Give an example of a chemical change and an example of a physical change.
Physical change= painting a table, melting an ice cube, dissolving salt in water, Jack Frost freezing your nose etc.
Chemical change= roasting chestnuts over an open fire, the rusting of the statue of liberty, baking soda and vineger, etc.
A change in state of matter is a chemical change. T/F
False.
False.
Let's say Buttercup, Chopper, and Pikachu have a combined weight of 36 lbs and a mass 16,000 grams, what is their mass and pounds on the moon?
Pounds= 6 lbs (the moon has less of a gravitational pull because it is smaller so they weight 1/6 of the their weight).
Mass= 16,000 grams (remember mass doesn't change - it doesn't get created or destroyed).
How are physical and chemical changes different?
In a chemical change does matter get created or destroyed? Explain.
No matter isn't created or destroyed it only changes form (atoms move around - old bonds are broken and new bonds are made).
Do all substances have unique freezing points, boiling points, evaporation points, etc. ? Explain.
Yes! Because structure relates to function.