Mixtures, solutions and changes

What happens in ALL chemical changes?

• Change in state of matter
• A new substance is formed
• Bubbles are produced
• An explosion

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

I left an apple out on the counter over night and it turned brown. Is this a chemical or physical change?

• Physical

• Chemical

What has to happen in order for a solution to be made?

• Dissolving

• Evaporating

• Condensation

• Melting

Is melting butter for popcorn a chemical or physical change?

• chemical
• physical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

A combination of two or more substances that cannot easily be separated--

• mixture
• solution
• solute
• solvent

All of these are examples of a substance being saturated EXCEPT...

• a substance has been dissolved evenly.

• there is too much solute to dissolve in the solvent.

• there is powder on the bottom of the hot chocolate cup.

• there is sugar at the bottom of the tea glass.

All of these are true of chemical changes except...

• can form a new substance

• can form bubbles

• does not create a new substance

• can form a gas

A combination of 2 or more substances that can be easily separated is called-

• a mixture

• a solution

• a solute

• a solvent

All of these are examples of a solution except...

• Trail mix, with nuts, raisins, pretzels and candy pieces.

• Dirt and water

• Lemonade

• Baking soda and water (Oobleck)

Which is an example of a mixture?

• Lemonade

• Sand and seashells

• Juice

• Hot chocolate