What is matter made of?
Matter is made of particles called atoms and molecules.
What are properties of matter?
Properties are characteristics we use to describe matter.
What is a physical change?
A change where the matter stays the same, like cutting or melting.
What are atoms?
Atoms are the smallest units of matter.
What tool do scientists use to see very small particles?
A microscope.
What is the definition of matter?
Matter is anything that has mass and takes up space.
Name one physical property of matter.
Color, shape, texture, or hardness.
What is a chemical change?
A change where new substances form, like rusting or burning.
What are molecules?
Molecules are made of two or more atoms bonded together.
Why do scientists use models to study matter?
Because particles are too small to see directly.
Give an example of something that is matter.
Water, air, and rocks are all examples of matter.
What tool measures mass?
A balance scale.
Give one example of a physical change.
Ice melting into water.
What is an element?
An element is a substance made of only one kind of atom.
What is the difference between mass and weight?
Mass is how much matter an object has; weight is the force of gravity on that mass.
What is something that is NOT matter?
Light and sound are not matter because they don’t have mass or take up space.
How can you describe texture?
Texture describes how something feels, like rough or smooth.
Give one example of a chemical change.
Burning paper.
What is a compound?
A compound is made of two or more different atoms bonded together.
What is the metric unit for mass?
Gram (g).
How do we measure matter?
We measure matter by mass and volume.
What property helps you separate mixtures?
Differences in properties like size, magnetism, or solubility.
How can you tell a chemical change happened?
New color, gas, or substance appears, or heat is given off.
Give an example of a compound.
Water (H2O) is a compound.
What is the metric unit for volume of a liquid?
Liter (L).