5th Grade Modeling Matter EOU Review

Jeremiah made a model of matter. He brought it into class to show his peers. When he showed his classmates, they made guesses for what the model was. Which of the following student guesses best describes what is shown by the model?

• Molecules of a certain liquid

• Molecule of the color blue

• Molecules of heat energy

• Blue Marbles in a cup

Answer explanation

The model represents molecules of a certain liquid, which is the correct choice.

Tags

NGSS.MS-PS1-1

What is a molecule?

• Particles of a gas

• Particles of atoms

• The center of an atom.

• Two or more atoms linked together.

Answer explanation

A molecule is formed when two or more atoms are linked together. It is the correct choice because particles of a gas, particles of atoms, and the center of an atom do not fully define a molecule.

Tags

NGSS.MS-PS1-1

Particles of matter cannot be seen because they are….

• imaginary 

•  

  transparent 

• magical 

   

• Tiny 

Answer explanation

Particles of matter cannot be seen because they are tiny.

Which of the following best describes the matter in this lemonade ?

• It is made up of only one type of molecule.

• It is not made up of any molecules.

• It is made up of more than one type of molecule.

• It is not made up of matter.

Answer explanation

The matter in this lemonade is made up of more than one type of molecule.

Tags

NGSS.MS-PS1-1

Which of the following best describes the matter in this lemonade ?

• Mixture

• Substance

Answer explanation

The matter in this lemonade is a mixture, as it is made up of multiple ingredients combined together.

Which of the following best describes the matter in this glass of saltwater ?

• Mixture

• Substance

Answer explanation

The matter in this glass of saltwater is a mixture. It consists of a combination of salt and water.

Which of the following best describes the matter of the salt?

• Mixture

• Substance

Answer explanation

The matter of salt is a substance. It is not a mixture. Therefore, the correct choice is Substance.

What happens to the molecules of salt when it is mixed with water?

• The molecules of salt spread out evenly in the water

• The molecules of salt disappear

• The molecules of salt change into water molecule.

• The molecules of salt clump together

• the molecules of salt change color

Answer explanation

When salt is mixed with water, its molecules spread out evenly in the water, which is the correct choice.

Tags

NGSS.MS-PS1-2

Carolin weighs an empty balloon, inflates it and weighs it again. She found that the mass of the balloon increased. Which requirement of matter does this best support

• Matter takes up space

• Matter has mass

• Matter is made of Mass

Answer explanation

The increase in mass of the balloon after inflation supports the requirement that matter has mass.

Carolin observes an empty balloon in a shoe box, she takes the balloon out, inflates it and tries to place it back in the shoe box. She found that the balloon could no longer fit in the shoe box. Which requirement of matter does this best support

• Matter takes up space

• Matter has mass

• Matter is made of Mass

• Mass has weight

Answer explanation

When Carolin inflates the balloon and it no longer fits in the shoe box, it supports the requirement that matter takes up space.