Exploring Matter and Its Properties

What is the smallest unit of matter that keeps the properties of an element?

• Atom

• Molecule

• Compound

• Mixture

Tags

NGSS.MS-PS1-1

Which particle has a positive charge?

• Electron

• Neutron

• Proton

• Atom

What is the chemical symbol for oxygen?

• Ox

• O

• Oy

• Om

Which state of matter has a definite shape and volume?

• Liquid

• Gas

• Solid

• Plasma

What is the atomic number of an element based on?

• Number of neutrons

• Number of electrons

• Number of protons

• Number of atoms

Which of the following is a compound?

• Gold

• Oxygen

Tags

NGSS.MS-PS1-1

Which of the following is a homogeneous mixture?

• Salad

• Sand and water

• Saltwater

• Trail mix

What are electrons?

• Positively charged particles in the nucleus

• Neutral particles in the nucleus

• Negatively charged particles orbiting the nucleus

• Particles with no charge outside the nucleus

Tags

NGSS.MS-PS1-1

Which of the following best describes a mixture?

• A pure substance made of only one type of atom

• Two or more elements chemically combined

• A blend of substances not chemically bonded

• A substance with a fixed chemical formula

Which particle is neutral and found in the nucleus?

• Electron

• Proton

• Neutron

• Atom