Physical Science

Iron rusts

• Physical Change

• Chemical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Physical or Chemical Change?

• Physical Change

• Chemical Change

Tags

NGSS.MS-PS1-4

A solid piece of chocolate is melted and changed to liquid form. Which property of the piece of chocolate will remain the same?

• Texture

• Temperature
  

• Shape

•  Mass

Tags

NGSS.MS-PS1-4

A mixture is the result of a physical change because...

• The parts can be separated

• A new substance is made

• There is a chemical reaction

• One part of the mixture disappears

Dew forming on the ground is an example of?

• evaporation

• condensation

• preciptiation

• transpiration

Tags

NGSS.MS-ESS2-4

A push or pull on an object, causing it to move, stop, or change direction.

• motion

• gravity

• force

• inertia

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Judy did an experiment to see what type of metal conducts electricity best. What should she do to be sure that her results are correct?

• test different types of metal

• do the experiment several times

• make a graph to show her results

• check to see whether other students did the same experiment

Tags

NGSS.MS-PS1-2

Katie uses all her force to roll a bowling ball. Then Katie uses the same amount of force to roll a soccer ball. The soccer ball has less mass, but both balls are the same size. Why is the movement of the two balls different?

• The soccer ball moves a greater distance because more force is acting on it.

• The soccer ball moves a greater distance because it has less mass.

• The bowling ball moves a greater distance because it has more mass.

• The bowling ball moves a shorter distance because it has less force is acting on it.

Tags

NGSS.MS-PS2-2

Students were playing tug of war on the playground. Students on both sides were pulling on the rope, but the rope does not move. Which of the following sentences is true.

• No forces are being used in the tug of war game.

• Balanced forces are evident in the tug of war game.

• Unbalanced forces are evident in the tug of war game.

• Friction is the only force being used in the tug of war game.

Tags

NGSS.MS-PS2-2

The following illustration shows a tool that is used to separate certain mixtures.

This type of tool can be used to best separate what type of mixture?

• a mixture of sand and salt

• a mixture of particles of the same size

• a mixture of particles of different sizes, such as seashells and sand

• a mixture of steel, which is magnetic, and aluminum, which is not magnetic