The definition of magnetism
Is an object attracted to a magnet?
The amount of space an object takes up
What is volume?
The three main states of matter
What are solid, liquid, and gas?
What does the word "relative" in "relative density" mean?
Density compared to something else (like water)
True or false: an iron nail can be separated from a heap of sand using a magnet
True
How much matter is in an object
What is matter?
In this state, an object can change its shape but not its volume
What is liquid?
What an object does when it is less dense than water
What is float?
True or false: iron filings can be cleaned from a jar of copper pennies using a magnet
True
The property of matter a student measures using grams on a triple balance beam
What is mass?
In this state, an object can change neither its shape nor its volume.
What is a solid?
What an object does when it is more dense than water
True or false: a small cobalt ring can be set apart from iron paperclips using a magnet
False
The difference between mass and weight
Weight is how "heavy" something is and depends on gravity (things weigh differently on earth and on Mars). Mass is how much "matter" is in an object (and is used in science because it never changes)
The state of matter for this picture:
What is a gas?
The density of a grain of rice is 1.452 g/mL. The density of water is 1 g/mL.
Predict what will happen to the grain of rice if it is placed in a graduated cylinder full of water.
Sink
What are the three (or four) most common magnetic materials?
What are nickel, iron, cobalt (and some steels)?
This picture shows the displacement, or amount of change in position, of water that occurs when a toy ball is dropped into a graduated cylinder full of water.
What is the volume, in mL, of the ball?
What is 25mL
The process you can use to make an object change between states of matter
What is adding or removing heat?
a) 3.408mL
b) 1.422mL
c) 3.43mL
What is answer choice C?