The Structure of Matter

. The smallest particles of matter are called:

• neutrons

• solutions

• atoms

• elements

The picture shown is an example of a

2. Particles move fastest in a 

• solid

• liquid

• gas

• slime

3. Particles are packed tightest in a

• solid

• liquid

• gas

• plasma

Which of the following correctly summarizes the process of ice turning into water and then into steam?

• a solid to a gas to a liquid

• a liquid to a gas to a solid

• a solid to a liquid to a gas

• a liquid to a solid to a gas

How do scientists know matter is made of particles?

• They can see them.

• A famous scientist decided it was true.

• People have always known it.

• Experiments have proven it.

What do scientists call a substance that is made of two or more atoms bonded together?

• Atom

• Proton

• Electron

• Molecule

The picture shows a Bohr model of which element?

• Neon

• Krypton

• Calcium

• Helium

Which three of the following can the Periodic Table be used for?

• finding a list of elements

• if an element occurs naturally

• the atomic mass

• the symbols used to identify each element

• All of the answers

Who originally organized the elements into the Periodic Table?

• Niels Bohr

• Gottfried Munzenberg

• Dmitri Medeleev

• Anton Von Leewenhook