Anything that has mass and takes up space is called this.
What is matter?
The tiny particles that make up matter are called these.
What are atoms?
A substance made of only one type of atom is called this.
What is an element?
Water (H2O) is an example of this.
What is a compound?
This tool can be used to measure the mass of an object.
What is a balance or scale?
This is the amount of matter in an object.
What is mass?
This subatomic particle has a negative charge.
What is an electron?
This chart organizes all of the known elements.
What is the periodic table?
A combination of two or more substances that are NOT chemically bonded is called this.
What is a mixture?
This is the amount of space an object takes up.
What is volume?
Melting ice is an example of this type of change.
What is a physical change?
This subatomic particle has a positive charge.
What is a proton?
The number of protons in an atom tells you which element it is. This number is called this.
What is the atomic number?
Salt (NaCl) is made from these two elements.
What is sodium and chlorine?
The formula for density is this.
What is mass divided by volume?
Rust forming on a nail is an example of this type of change.
What is a chemical change?
This subatomic particle has no charge.
What is a neutron?
This element has the symbol O.
What is oxygen?
In a mixture, the substances can usually be separated by using this type of method.
What is a physical method?
An object has a mass of 20 g and a volume of 5 mL. What is its density?
What is 4 g/mL?
A property that can be observed without changing what the substance is called this.
What is a physical property?
Most of an atom's mass is found in this central part of the atom.
What is the nucleus?
If an atom has 6 protons, it must be this element.
What is carbon?
Unlike a mixture, the elements in this type of substance are chemically bonded together.
What is a compound?
What is Object B?