What piece of equipment do we use to measure mass?
What units do we use to measure mass?(100 pts each)
Triple Beam Balance (TBB)
grams (g)
100
Matter can be defined as...
anything that has mass and takes up space (has volume)
100
What is the fancy science word for "smell" that is also a physical property of matter?
Odor
100
Flammability is the ability for a substance to _____.
catch on fire; ignite
100
Mr. McQuaid used his super powers at lunch yesterday to bend a spork in half with his bear hands. What type of change did the spork experience?
A physical change, in shape.
200
200pts each
What do we use to measure liquid volume?
What units do we use to measure liquid volume?
Graduated Cylinder
milliliters (mL)
200
Define mass.
The measurement of the amount of matter in an object
200
Mass divided by volume is the formula for ______
Density
200
Define: Chemical Property
describes a substance's ability to participate in chemical reactions; describe matters ability to change into new matter
200
What type of change did our coins go through over the weekend?
chemical change; the vinegar reacted with the copper.
300
300 points each
What is the formula to find the volume of a regularly shaped object, such as a rectangular block?
What is our unit for the volume of a solid?
Volume = Length x Width x Height (LxWxH)
cubic centimeters (cm3)
300
Define Volume.
The amount of space an object takes up.
300
Salt dissolves in water. What physical property does this represent?
Solubility
300
Why does iron rust?
Iron has the chemical property of reactivity with oxygen, when iron is exposed to oxygen, it rusts
300
Baking a cake is an example of a _____________
chemical change
400
What is the process called to find the volume of an irregularly shaped object, such as a rock?
Water Displacement or Displacement
400
A shopping cart full of potatoes is harder to push than an empty shopping cart because it has more mass, therefore it has more ____________
Inertia
400
Copper is pulled into wires. What physical property does copper have?
Ductility
400
Why is the Statue of Liberty green if it is made of copper (which is normally brown-ish)?
The Statue of Liberty has the chemical property of reactivity. The copper reacts with the moist air which has acid dissolved in it, resulting in a chemical change.
400
On a hot summer day, Mr. McQuaid left an ice cube on the sidewalk. When he came back a while later, all that was left was a small puddle of water. What type of change occurred?
physical change; change in state (solid -> liquid)
500
500pts each
What do we use to measure the weight of an object?
What units do we use to measure weight?
Spring Scale
Newtons (N)
500
Weight is a measurement of ......
the gravitational force on an object.
500
Aluminum is pounded into sheets to make foil. What physical property does aluminum have?
Malleability
500
Which properties are most useful in identifying a substance? These properties are not specifically chemical or physical.
characteristic properties
500
What is the name of the process that separates water into hydrogen and oxygen gases?