Online Science Class for Preschoolers: Sponges

This is the first lesson in Week 4 (the last week) of my Online Science Class for Preschoolers.  I hope you've enjoyed some of the experiments and activities!  Even more, I hope that I've helped make science for preschoolers more accessible, easy, and fun!   

This week has been very busy for me--we returned yesterday from a trip to Utah and are still in a bit of an unpacking frenzy.  I'm a bit behind on my blogging (okay, a lot!), but I will still post all four ocean lessons and catch up on my blog visiting soon--you know, between unpacking, snacks, naps, and playing Cinderella! 

WEEK 4: Oceans

Day 1: Sponges
Overview: This lesson lets your child experiment with sponges.  Children sort, experiment, change, and create.  The lesson appeals to the Verbal-Linguistic, Logical, Visual-Spatial, Bodily-Kinesthetic, Naturalist, and Intrapersonal intelligences.

  • an assortment of sponges--real and synthetic (Look for real sponges in the beauty isle at a supermarket or drugstore.  Synthetic sponges are easy to find in the cleaning isle.)
  • paints (red, yellow, and blue)
  • pie tin
  • paper or other material (like a flower pot) to paint
  • paper cup(s)
  • Science Journals.  

  • Gather supplies.  
  • If desired, cut 1-2 synthetic sponges into shapes like triangles, circles, and squares

Science Time!
  • Today we're going to experiment with sponges.  What do you know about sponges?  
  • Look at all these sponges!  Feel them.  Do they feel the same?  How do they smell?  Do they have the same colors?  Do they have the same shapes?  You can sort each sponge into a pile with other sponges that are the same as it.  (Note: It's fun to watch what similarities children will choose to focus on when they sort...try to let your child decide what's important--color, shape, etc.)  
  • Real sponges (like these) grow in the ocean.  Look at this picture of sponges growing in the ocean.  (Make sure you notice the pink AND yellow sponges.  Talk about other things growing and living around the sponges.  What kind of neighbors would a sponge have?  Isn't that an awesome picture?!
  • Sponges can hold water.  Give your child a cup half full of water, an empty cup, and a sponge or two.  Ask her what she thinks will happen when the sponge gets wet.  Let her experiment with how much water the sponge can hold and what she can do with the sponge when it is wet.  
  • Sponges can also hold paint!  Put the three primary colors in a pie tin and give your child a pile of sponges to paint with.  I cut a synthetic sponge down into shapes about 2 inches wide for this.  Your child can paint on a paper or she can decorate a flower pot (or many other things, depending on what type of paint you use!).  Remember to talk about mixing colors and what new colors your child makes as she paints.
  • Science Notebooks:  Draw or write about what we did today.