Matter
What is the definition of matter?
Anything that has mass and takes up space.
An educated guess
Hypothesis
What property of matter do cobalt, nickel, iron, and steel have in common that other metals do not?
Magnetism
I am clear, I am more dense than water, I am not soluble, I do not conduct electricity, I am a conductor of heat. What am I?
Glass
Solid liquid gas
Name one object that is matter and one object that is not characterized as matter.
Table and light
In science we always used what types of measurements? These are used all over the world except the US.
Metric
I am less dense than water, I am not soluble, I am a liquid. What am I?
oil
Explain the difference between mass and weight.
Mass is a measurement of the amount of atoms that make up an object. Mass does not change when you go from earth to the moon. Weight is a measurement of the pull of gravity on an object. Weight will change when you go from the earth to the moon.
List all six properties of matter studied in class and explain each one.
Solubility, states of matter, conductor of heat and electricity, magnetism, density
True or False: Air is not matter because we can not see it.
False: Air is matter because it is made up of atoms that have a mass and take up space.
In a scientific experiment, why do we want to collect data on as many trials as possible?
More reliable
I am less dense than water, I am a solid, I do not conduct electricity, I do not conduct heat, I was once alive. What am I.
wood
A am abiotic, I am almost always less dense than water, I am a solid, I am an insulator of heat and electricity, I am flexible, I am easily recycled. What am I?
Plastic
I am a solid, I am more dense than water, I am a conductor of heat and electricity, I am a alloy, I am attracted to a magnetic.
Steel
Matter that is alive or was once alive is called?
Biotic
Name three reasons why we would need to use a model to help us understand something instead of the real thing?
Size, dangerous, in the past, in the future, too expensive, etc.
Heat
Name the two parts that make up a solution and give an example of each.
Solute = the substance being dissolved, salt
Solvent = the substance, often a liquid, that the solute dissolves in, water
How could you categorize the following matter into three groups?
Copper, Glass, Saltwater, Plastic, Oil, CO2
State of Matter
When a solid, like dry ice, goes directly to a gas without becoming a liquid first, it is called?
Sublimation
The one thing you change in an experiment is called the __________________ variable.
What happens because of that change is called the ____________________ variable.
independent
dependent
Why is plastic or rubber used to insulate wire verses glass or plastic?
They are flexible
Describes the steps to separate a mixture of water, pepper, and salt.
First, you would filter off the pepper with a coffee filter (because pepper is insoluble). Then, you would boil off the water until the salt is left in the bottom of the pan.
List 10 properties of matter for a bare piece of copper wire.
Solid, malleable, not soluble shiny, more dense than water, flexible, conductor of electricity, copper in color, conductor of heat, smooth, hard, etc.