Looking for an activity that’s educational, kid-friendly, and seasonal? Check out this simple DIY science experiment that utilizes fun fall objects and the age-old question: Will it sink or float? This experiment tests the concepts of density and buoyancy. Basically, dense objects sink and buoyant objects float.
All you need to conduct this experiment is a large bucket or container of water and a collection of your favorite fall items, such as gourds, leaves, pumpkins, apples, or acorns—the possibilities are endless!
Step 1: Categorize
Get a piece of paper and separate it into two columns: sink and float. Go out and collect different sizes of fall leaves so your child can see how size and shape factors into the experiment. Don’t forget to grab some heavier items that are sure to sink like gourds and pumpkins, too. Next, have your child make guesses on whether each item will sink or float. This gets their brain thinking critically before getting to the fun part!
Step 2: Experiment
Now comes the real action! Take each item and place it in the bucket to see whether it will sink or float. See what happens when you push a floating item down to the bottom of the bucket. Try each object more than once, just like a real science experiment, to ensure accurate results. Don’t forget to record each answer and check if their guesses were correct.
Step 3: Reflect
Encourage curiosity! Ask your child what all of the sinking items and what all of the floating items had in common. Inquire why they may think certain items floated or sank. Don’t forget to explain the concept of density and buoyancy to seal this science lesson in their brains!
Soaking up the science is as easy as 1, 2, 3. This seasonal sink or float project provides a fun, educational activity to kick off the autumn season! Don’t forget to whip up a couple of tasty, water-based fall drinks to enjoy while you explore.