Fusion and the Sun: Vocabulary Review

What is the sun mostly composed of?

• Water

• Plasma

• Ice

• Rock

Anything that takes up space and has mass is called _______.

• matter

• energy

• light

• sound

What are the three main subatomic particles in an atom?

• Protons, Neutrons, Electrons

• Protons, Photons, Neutrons

• Electrons, Positrons, Neutrons

• Protons, Neutrons, Ions

What is the center of an atom where protons and neutrons are located called?

• Nucleus

• Electron cloud

• Shell

• Orbit

What is the region where electrons orbit (circle around) the nucleus called?

• Outside Nucleus

• Inside Proton

• Neutron Zone

• Core Center

A substance made of one type of atom, for example oxygen, is called an ________.

• Element

• Compound

• Mixture

• Solution

A group of elements bonded together is called a ________.

• Molecule

• Atom

• Compound

• Mixture

A variation of an atom that has a different number of neutrons is called an ________.

• Isotope

• Ion

• Molecule

• Element

What is nuclear fusion?

What is uranium?

• Uranium is a naturally occurring radioactive element with atomic number 92, used in nuclear reactors for fission.

• Uranium is a type of fossil fuel found in coal mines.

• Uranium is a synthetic element used only in making jewelry.

• Uranium is a non-radioactive metal commonly used in construction.