Chemistry of Earth

Which of the following is an example of a chemical property?

• The basketball is orange.

• The gasoline is flammable.

• The bike is made of metal.

• The slice of cheese is a solid.

The nucleus of an atom contains which of the following subatomic particles?

• Electrons

• Protons

• Neutrons

The atomic number of an element is determined by which of the following?

• Number of electrons

• Number of neutrons

• Number of protons

• Number of protons and neutrons

What are the three states of matter?

• solid, liquid, and gas
• solid, water, and gas
• wood, liquid, and gas
• solid, liquid, and helium

A physical change is...

• a change that doesn't change the identity
• a change that makes something new.
• a chemical reaction

Which two words are ways to describe luster

• bright, dark

• light, dark

• shiny, dull

• sparkly, smooth

The ability of a metal to allow heat or electricity to pass through it.

• conductivity
• insulator
• mass
• density

What type of charge does a proton have?

• negative

• postive

• no charge/neutral

What type of charge does an electron have?

• positive

• no charge/neutral

• negative

What is the center of the atom called?

• nucleus

• electron cloud

• energy level

• neutron