1. Witches Brew List the chemical formula for dry ice. Why do you think it is called dry ice? Explain the phase change of dry ice. What is the phase change of dry ice from a solid to a gas called? How does the What state of matter is Oobleck? density of dry ice compare with the density of the air? Mixture Monster Mash What kind of mixture is your snack? When the mixture was formed, did it undergo a physical change or a chemical change? What are some signs of a chemical change? Slimey Green Goo (aka Oobleck) What state of matter is borax? What state of matter is glue? What was the solvent? What was the solute? What state of matter is Oobleck? Was this a physical change or a chemical change? Ghost Guts (aka cornstarch and water) What state of matter is cornstarch? What state of matter is water? What would happen if you hit water with your fist? What happened if you hit the ghost guts with your fist? What happened when you slowly put your hand in the ghost guts? Bewitching Bubbles Is the bubble solution a heterogeneous mixture or a homogeneous mixture? How does the density of the bubbles compare to the density of air? Your bubble solution is made of dish detergent, glycerin, and water. Which of these is known as the ‘universal solvent’? Gushing Geysers (aka Coke & Mentos) Why do we use diet soda instead of regular soda? What gas is pumped into the soda to make it bubble? Why do you think the mentos made the coke erupt? List three variables that you could change in this experiment. Mad Scientist Day Activities Witches Brew List the chemical formula for dry ice. Why do you think it is called dry ice? Explain the phase change of dry ice. What is the phase change of dry ice from a solid to a gas called? How does the What state of matter is Oobleck? density of dry ice compare with the density of the air? Mixture Monster Mash What kind of mixture is your snack? When the mixture was formed, did it undergo a physical change or a chemical change? What are some signs of a chemical change? Slimey Green Goo (aka Oobleck) What state of matter is borax? What state of matter is glue? What was the solvent? What was the solute? What state of matter is Oobleck? Was this a physical change or a chemical change? Ghost Guts (aka cornstarch and water) What state of matter is cornstarch? What state of matter is water? What would happen if you hit water with your fist? What happened if you hit the ghost guts with your fist? What happened when you slowly put your hand in the ghost guts? Bewitching Bubbles Is the bubble solution a heterogeneous mixture or a homogeneous mixture? How does the density of the bubbles compare to the density of air? Your bubble solution is made of dish detergent, glycerin, and water. Which of these is known as the ‘universal solvent’? Gushing Geysers (aka Coke & Mentos) Why do we use diet soda instead of regular soda? What gas is pumped into the soda to make it bubble? Why do you think the mentos made the coke erupt? List three variables that you could change in this experiment. Mad Scientist Day Activities