What is Matter?
What is matter?
Anything that takes up space and has mass.
What are the three main states of matter?
Solid, Liquid, Gas.
Are particles of matter always moving? Yes or No?
Yes.
What is mass?
How much matter an object contains.
What tool did we use in class to measure mass?
A balance scale.
Examples: air, water, chair, desk, book (answers will vary)
Which state of matter has a definite shape and a definite volume?
Solid.
Is there space between particles? Yes or No?
Yes.
What is volume?
The amount of space an object takes up.
What SI (standard) unit is mass typically measured in?
Grams (g)
True or False: All matter is made up of small particles.
True.
Which state has a definite volume but no definite shape?
Liquid.
Describe the particles in a solid. How are they arranged and how do they move?
They are tightly packed and they vibrate in place.
What is density?
How tightly packed the matter is in an object.
What SI (standard) unit is volume typically measured in?
Mililitres (mL) or litres (L)
What two physical properties must something have in order for it to be considered matter?
Mass and Volume.
Which state of matter has no definite shape and no definite volume?
Gas.
Describe the particles in a liquid. How are they arranged and how do they move?
They are close together but far enough apart that they can slowly slide passed each other.
What is compressibility?
How easily an object can be squished.
What tool did we use in class to measure volume?
A graduated cylinder.
All matter is made up of particles. ________ are the smallest bricks of matter. ________ are groups of atoms that stick together.
Atoms and Molecules.
Between solids, liquids, and gases, which is usually more dense?
Solids.
Describe the particles in a gas. How are they arranged and how do they move?
They are far apart and they move quickly in all directions.
What are attractive forces? In which state are these forces the strongest?
Attractive forces are the forces between particles that help pull them together, like magnets. They are strongest in a solid.
When using a graduated cylinder to measure volume, what are two things you need to do in order to get an accurate measurement?
You need to get down at eye level, and measure the bottom of the meniscus.