Make a backyard bowling alley. Add food coloring to clear plastic bottles of water. Use party streamers as lane margins. Add glow sticks for night bowling. (These would make great outdoor table nightlights also with the glowsticks, gonna try it!
For Kids: Make a Unique Piggy Bank out of a Plastic Bottle
Water Rocket: The combination of water, compressed air, and a plastic soda bottle serves as a great source of propulsion for a water rocket. Alternate way (without tape) to fix up those water bottle rockets. by elsa
This could be a great way for kids to practice addition skills. Get creative & with certain colors and you could even throw some subtraction in there. Water Bottle Bowling Tutorial by Meet The Dubiens - great way to keep the kids entertained!
Ocean Unit - a bottle jellyfish. The preschool kids love things that hang in the classroom. Interesting to see how much the kids can do themselves - what needs to be modified. ***has a lot of kids crafts