Catalysts

What was the catalyst used in today's experiment?  What was the result of using this catalyst?

Rainbow Lab

Great job today!!! Can you tell me what solutions can be made of? What is a solute? What is a solvent? Did you observe a chemical or physical change today?

Hey 7th and 8th!!! Check this out!!

This was on Good Day Sacramento today.  Super cool!!  Physical or Chemical Change??

This one is pretty cool too...DO try this at home :)

Tastiest Lab EVER!!!!

Great work today!!! Below you will find some examples of physical and chemical changes...and some pictures from today :)

Changes	Physical or Chemical
glass breaking	Physical
hammering wood together to build a house	Physical
a rusting bicycle	Chemical
melting butter for popcorn	Physical
separating sand from gravel	Physical
spoiling food	Chemical
mixing lemonade powder into water	Physical
mowing the lawn	Physical
corroding metal	Chemical
bleaching your hair	Chemical
fireworks exploding	Chemical
squeezing oranges to make orange juice	Physical
frying an egg	Chemical
pouring milk on your oatmeal	Physical
burning leaves	Chemical
making salt water to gargle with	Physical
cream being whipped	Physical
burning toast	Chemical
freezing chocolate covered bananas	Physical
melting ice cream	Physical

Physical and Chemical Changes Lab

CH, CH, CH CH CH, CH CH CH CH, CH CH......Honestly, I have lit a match before!!!!

 

Great work today!!!  No fire alarm....huge sigh of relief.  I think my favorite part was watching you smell the vinegar/ chalk reaction (insert evil laugh here :)  Also, I loved the extra experiments you thought to try and thoroughly appreciate all of you getting prior permission before your attempt. 

 

Remember the take home message...Chemical changes form a new substance, with new properties.  In physical changes, only the form of the substance changes. 

 

Observing the candle

 

Chalk and Vinegar

Heating the sucrose

 

Best reaction ever!!!