Matter
This is anything that has mass and takes up space.
What is matter?
This measures the amount of matter in an object.
What is mass?
This state has a definite shape and definite volume.
What is a solid?
A characteristic that can be observed without changing a substance.
What is a physical property?
What is the formula for density?
What is Density = Mass ÷ Volume?
A rock, water, and air are all examples of this.
What is matter?
This measures the amount of space an object takes up.
What is volume?
This state has a definite volume but no definite shape.
What is a liquid?
This physical property measures how much matter is packed into a space.
What is density?
Why is density considered a characteristic property?
Because it stays the same regardless of sample size.
Matter is made of tiny particles called ________.
What are atoms?
Density is calculated by dividing mass by this.
What is volume?
This state has no definite shape and no definite volume.
What is a gas?
The ability of a material to be attracted to a magnet.
What is magnetism?
Can two substances have the same color but different densities?
Yes.
True or False: Light is matter.
What is false?
A sample has a mass of 20 g and a volume of 10 cm³. What is its density?
What is 2 g/cm³?
Particles move fastest in this state of matter.
What is a gas?
The ability of a material to transfer electricity.
What is conductivity?
Why is color usually less reliable than density for identifying substances?
Different substances can have the same color.
Explain why air is considered matter.
Air has mass and takes up space.
A sample has a mass of 60 g and a volume of 15 cm³. What is its density?
What is 4 g/cm³?
Compare the particle movement of a solid and a gas.
Solid particles vibrate in place; gas particles move freely and rapidly.
Name three physical properties scientists use to identify substances.
Density, conductivity, magnetism, solubility, color, mass, volume, etc
A scientist finds a material that is magnetic, conductive, and has a density of 7.8 g/cm³. Explain how these properties help identify the substance.
The combination of properties provides evidence that can be compared to known substances, making identification more accurate.