Chemical Reaction

How is a physical change different from a chemical change?

• In a chemical change, no new substance is formed. In a physical change, a new substance is formed

• In a chemical change, a new substance is formed. In a physical change, no new substance is formed.

• Chemical and physical changes are the same.

• In a chemical change, a solution is formed. In a physical change a mixture is formed

One example of a physical change is......

• A cake

• Sugar water

• Steel wool burning

• Trail mix

How is a solid different from a gas?

• The molecules take the shape of its container

• The molecules are lose.

• The molecules bounce around

• The molecules are tight together

Tags

NGSS.MS-PS1-4

What is a combination of two or more substances that KEEPS their identity?

• a solution

• a mixture

• a liquid

• a gas

What solute is soluble in water?

• rocks

• snow

• sugar

• spices

An example of a solution is....

• Lemonade

• water

• bar soap

• trail mix

What will reduce the time it takes to dissolve something quickest?

• Cold temperature

• warm water

• doing nothing

• heating device

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What will slow down the change of matter?

• Warm water

• Hot water

• Cold water

• Doing nothing

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What can NOT be easily separated?

• a solution

• a solid

• a liquid

• a mixture

If the mass of water is 100 mg. How much will the total mass be if you add 58 mg of salt to the solution?

• 100mg

• 58mg

• 42mg

• 158mg

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5