Properties of Matter
What are the three properties of matter?
Solid, liquid, & gas.
Can matter vanish?
No. Matter never just vanishes. When it seems to disappear it is just changing from one form to another. All matter is conserved, it just changes forms.
What are gasses made up of?
Gases are made up of particles of matter that move around and spread out to fill space. Gas particles move freely and take the shape of their containers.
Anything that has weight and takes up space.
Matter
When a substance is incorporated into a liquid to form a new solution.
Dissolve
What is the result when two substances are mixed together?
When two substances are combined, they could form a new substance.
If a pot of water is left on the stove to boil, some of the water seems to disappear! Where does it go?
When water is heated it changes form from liquid to gas. The gas then escapes into the air.
Can particles be seen with our naked eye?
No. Particles of matter are too small for our eyes to see. They are about 100,000 times smaller than the width of a human hair.
Characteristics or attributes.
Properties
this states that the amount of matter stays the same, even when matter changes form.
The Law of Conservation of Matter
What properties make metal a bad choice of material for the handle of a pot?
Metal conducts heat, which means that it might cause your hand to be burned if used as the handle of a pot.
What does "conservation of matter" mean?
The phrase “conservation of matter” describes how the amount of matter stays the same, even if it changes form.
Why would a soccer ball that has been left out in the cold go flat?
A soccer ball that is filled with air can go flat when air particles in it take up less space. This can happen if you inflate the ball indoors but then play outside in cold weather.
A property of matter that measures how close together the particles are inside a substance. This can determine things like if something will float or sink.
Density
The smallest possible unit of matter.
Particle
What properties make stainless steel a better choice for a knife and fork than Swiss cheese?
Swiss cheese is too soft to be an effective material for a knife and fork. It squishes rather than cuts. Stainless steel is hard and strong. It is even better than iron because iron rusts.
When dry ice appears to be smoking, what is actually happening?
The “smoke” coming from dry ice is actually carbon dioxide gas, which is turning from a solid into a gas.
What is the smallest possible unit of a type of matter called?
The smallest possible unit of matter is called a particle. Particles of matter are 100,000 times smaller than the width of a human hair. They cannot be seen, but we can detect them.
A property of matter that measures how well one thing can dissolve in another.
Solubility
What is the robot's name in LabRaKazam?
Bert
Why is knowing properties of matter important for engineers?
Knowing the properties of matter can help engineers pick the right types of materials for the job.
When a candle burns, why does it get lighter?
When candle wax burns, it is changing into gases that are released into the air. As that gas escapes, it is no longer part of the candle so the scale doesn't account for it.
Why does a balloon inside a vacuum chamber get bigger when the vacuum pump is turned on?
Before the vacuum pump is turned on, the chamber contains the balloon AND lots of air particles. When the pump is turned on, the air particles surrounding the balloon are removed, leaving space for the particles inside the balloon to spread out further and fill up the extra space.
A property of matter that measures how well something can allow electricity to flow through it.
Conductivity
Protons, neutrons, and electrons are all particles of _____.
Atoms