Unit 1 Chemical Building Blocks Vocabulary

Select the best scientific meaning for volume.

• The amount of space an object occupies or a container can hold.

• The amount of surface area an object occupies or the flat space covered by an object.

• The density of an object is it's volume plus the mass of the object.

Select the best answer. What is an atom?

• The physical changes and ways matter change from one form into another form.

• The building blocks of matter. Protons, electrons and neutrons.

• Combinations of molecules, mixed together to form compounds.

Tags

NGSS.MS-PS1-1

Select the best definition of liquid.

• Matter that has definite shape and occupies volume. Molecules are fixed and ridged forming a definite shape.

• Matter that has no shape and takes up the volume of it's container. Molecules are moving fast and are very far apart when compared to the other phases of matter.

• Matter that has volume but no shape. Matter that takes the shape of it's container. Molecules are fluid like and found farther apart than a solid and closer together than a gas.

A group of atoms that are chemically bonded together form a

• molecule or compound.

• mixture or solution.

• element or atom.

Tags

NGSS.MS-PS1-1

Sodium chloride (NaCl) is an example of a

• compound or molecule

• element or atom

• homogenous mixture

Tags

NGSS.MS-PS1-1

Select the best answer. These are some of the physical properties of matter.

• texture, color, mass, volume, melting point, boiling point. Characteristics can be observed.

• rust, reactivity, oxidation, flammability. Characteristics can be observed.

• elements, atoms, compounds, mixtures. Characteristics can be observed.

Tags

NGSS.MS-PS1-4

A change in a substance that does not change the identity of the substance is known as this form of change.

• Physical Change

• Molecular Change

• Chemical Change

Tags

NGSS.MS-PS1-2

When a substance changes from a solid into a gas.

• Conduction

• Sublimation

• Convection

Tags

NGSS.MS-PS1-4

What is a solution?

• A solution is formed when one substance is dissolved in another substance. A solution is a mixture.

• A solution is formed when one substance changes into another substance and no new substances are formed. A mixture is not a solution.

Thermal energy can be measured by using this tool.

• meter stick

• electronic scale

• thermometer.