Procedures of Heating and Cooling Six Materials

What is one control variable for today's investigation? In other words, what makes it fair?

• Having different distances from the flame for each material.

• Cooling the materials between 20-50 seconds.

• Heating each material for exactly 3 minutes.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What is one control variable for today's investigation? In other words, what makes it fair?

• Cooling the materials at different amounts of time.

• Cooling half the materials in a water pan and the other half without water.

• Cooling each material the same amount of time.

Tags

NGSS.MS-PS3-4

What is the independent variable (I.V.) in today's investigation?

• The amount of time for heating each material.

• The amount of time for cooling each material.

• The six different materials.

• The melting point and observations of the materials.

What is the dependent variable (D.V.) in today's investigation?

• The amount of time for heating each material.

• The amount of time for cooling each material.

• The six different materials.

• The melting point and observations of the materials.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is ONE control variable in today's investigation?

• The amount of time for heating each material.

• The six different materials.

• The melting point and observations of the materials.

What is a materials melting point?

• The temperature where a material turns from a solid into a liquid.

• The temperature where a material turns from a liquid into a solid.

• The temperature where a material turns from a liquid into a gas.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is a materials freezing point?

• The temperature where a material turns from a solid into a liquid.

• The temperature where a material turns from a liquid into a solid.

• The temperature where a material turns from a liquid into a gas.

Tags

NGSS.MS-PS1-4

What is a materials boiling point?

• The temperature where a material turns from a solid into a liquid.

• The temperature where a material turns from a liquid into a solid.

• The temperature where a material turns from a liquid into a gas.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4