I love ridiculously easy science experiments. I don’t want to create a shopping list just to do something with my kids. I know, sometimes it is worth. But most times I just want to grab a few things around the kitchen and be done.
glass or bowl
This is a great activity to do after “sink or float.” Hypothesize if an egg will float in water. Test the hypothesis. Then add salt and try it again. Hint- you have to add LOTS of salt! How does it work? A raw egg has more density than tap water. Adding salt increases the density of water until at some point it is greater than the egg. Then the egg floats. Try the experiment with other materials. Talk about swimming in saltwater vs. freshwater.
How easy is to make your own binoculars? Just wrap some duct tape around two toilet paper tubes and add some string. I had the patterned duct tape to really make it fancy. Ha. They just take a minute to make and then you can have all kinds of fun.