Classroom Chemistry

What kind of change is occurring when the candle is melting ?

• Chemical
• Physical

What kind of change is occurring when baking cookies ?

• chemical
• physical

What kind of change is occurring to the water ?

• chemical
• physical

What kind of change is occurring to the car ?

• chemical
• physical

What would be the best technique to separate a mixture of beans and rice?

• sieves (various sizes) 
•  distilling / Using water
• magnet 
• evaporation

Any solid that can dissolve in water is ______?

• saturated 
• insoluble 
• soluble
•  suspension

Which method would be the best to use in order to separate aquarium rocks and sawdust?

• sieves 
• magnets 
• distilling / water
• evaporation

A lifesaver  dissolved in a solution is called the _________. 

• solute
• substance
• mixture
• soluble

When you can no longer dissolve any more sugar into water the the solution is now _________.

• solvent
• soluble
• insoluble
• solvent

Salad is an example of a ____.

• solution
• mixture
• substance
• solute