In this post, I wanted to highlight some of the amazing science experiments that we did when my kids were younger and share several free resources we have here on the blog. These are some of the activities that really impressed my kids when they were younger!! I usually tried to the science experiments into topics we were learning… in this case some basics about chemistry.
If you have older kids, then you will want to check out our newly released 75+ page Chemistry Packet! But as I said above, in this post I want to focus on some of the chemistry activities we did when the kids were younger. 🙂
When the kids were quite young (early elementary), we did an introductory chemistry unit using Real Science 4 Kids pre-Level 1. (affiliate link) One of the chapters in our chemistry book (Real Science 4 Kids-pre-level 1) talked about mixtures. It talked first about how how some mixtures dissolve (like salt in water). Then it went on to talk about soap and soap molecules. We read how soap makes things like butter and grease “dissolve” in water. Detergent is attracted to both oil and water helping them join together.
We did a little experiment to show how soap helps get your dishes clean. We took a couple of baby food jars and put oil and colored water into each. Then to one of the jars we added dish detergent. We all watched as the detergent took its time and then slowly sank down through the layer of oil. We shook both jars vigorously and then set them to the side for 20 or 30 minutes.
When we came back, we could see that the jar without detergent had separated back into two layers — oil and water. In the other jar, the oil and water still seemed to be mixed together. The older kids learned that this is called an emulsion.
While we were waiting for the experiment above to finish we went on to another mesmerizing activity. We’ve done this before and it never fails to captivate us! All you need is milk in a bowl, food dye, detergent and a Q-tip. You place a few drops of dye into the milk, dip the Q-tip into detergent and then very gently place the Q-tip into the water. The colors start racing around. The kids then dipped their Q-tip into the detergent again and gently placed it back in the milk in a different spot. The colors start moving and swirling about. It’s really pretty to watch!
The action in this experiment is a bit complex. Our chemistry book showed how soap molecules have different properties. Our book explained it as one end being “oil-like” and the other, “water-like.” Oil dissolves in the oil-like ends of the soap and becomes surrounded by the water molecules. This experiment shows the movement of molecules as the fat molecules are interacting with the soap detergent molecules.
Steve Spangler explains this milk experiment this way, “The molecules of fat bend, roll, twist, and contort in all directions as the soap molecules race around to join up with the fat molecules. During all of this fat molecule gymnastics, the food coloring molecules are bumped and shoved everywhere, providing an easy way to observe all the invisible activity. As the soap becomes evenly mixed with the milk, the action slows down and eventually stops.”
Other sources explain that other factors are at work here such as breaking the surface tension of the liquid, etc. If your child is older you could discuss those other factors as well.
If your kids are a little older, you might want to do the activity I describe here about Mixtures. After reading the chapter about Mixtures in Chapter 6 in Real Science 4 Kids pre-Level 1, it was time to do some hands-on activities.
The student chemistry textbook went into quite a bit of detail about molecules that dissolve and those that don’t. It talked about oil, water and soap and how they interact. Using Popsicle sticks, we made our own diagrams of water molecules (in red), oil molecules (blue chains), and soap (with a red OH group on one end and the oil-like molecules (in blue) on the other).
See more about this activity at this post: Mixtures and grab the Chemistry Packet (which is currently free!)
At any rate, it’s a colorful fun experiment to do with anyone from pre-K on up. Who doesn’t like watching colors swirl and whirl?!
I made a copy of this experiment and the explanation of how it works that you can print off:
Our final experiment didn’t really connect with our chemistry chapter, but was another fun, color experiment to do with the kids. We took skittles and dissolved them in water. (You can also use M&Ms) I had the kids guess whether the colors would mix or stay separate. The older kids, of course, remembered doing this a few years ago, but ED didn’t. We talked about how scientists “make predictions” and then perform experiments to see if their prediction was accurate.
Skittles (or M&Ms) have an edible dye that doesn’t dissolve in water. There was equal pressure from all sides as the dye moved towards one another so the colors stopped moving forward. I explained it to the kids as if we had our palms out and were both leaning a little bit toward each other.
Do you want to do other fun experiments with candy? Be sure to visit this great website, Candy Experiments written by Loralee, a mom of three. I visited the booth they had set up at the USA science and engineering festival a while back and the kids loved some of the experiments they had set up!
Science Experiment Pack: A number of years ago, I made a packet of some of our most beloved science experiments. If you’re keen to do science experiments with your kids, here are some of the things that my kids and I have enjoyed a lot:
Download your free Science Experiment Packet
Have fun experimenting with your young scientist!!
Other fun Chemistry Experiments:
- Chemistry Experiments for Kids (Grade 2) – Matter is Neither Created Nor Destroyed — Acids and Bases – Free Chemistry Experiment Printable Packet (when ED was in Grade 2)
- Chemistry Experiments for Kids (Grade 2) – Mixtures, Chromatography, DNA Kit – Free Chemistry Experiment Printable Packet
- We all enjoyed the IMAX film, Molecules to the Max which is out on DVD (see more about it at this post)
Molecules to the Max (affiliate link)
New Chemistry Packet
We did this when my kids were in grades 4, 7 and 9. It is best for middle school or as an introduction to chemistry for older students, though my youngest learned a lot too and enjoyed doing the hands-on activities.
Visit this post for more details!
See you again soon here or over at our Homeschool Den Facebook Page! Don’t forget to Subscribe to our Homeschool Den Newsletter. You might also want to check out some of our resources pages above (such as our Science, Language Arts, or History Units Resource Pages) which have links to dozens of posts. Don’t forget to check out Our Store as well. ~Liesl
Your young learner might also be interested in some of our other units:
My kids also loved our Earth Science Unit!
You might also be interested in this FREE Resource guide:
You might enjoy our Dinosaur Unit:
Dinosaur Packet for Ages 3-7
Dinosaur Packet: Check out our 60+ Page Dinosaur Packet. It includes
- Montessori 3-Part Dinosaur Cards
- Dinosaur Lapbook
- Letter Recognition Activities
- Number Activities and Games
- Dinosaur Game Board
- Coloring Pages
- Herbivores vs. Carnivore Sorting Activity
- Fast Fact Information Cards
- Dinosaur Writing Cards
- Bingo Cards and more!
See you again soon here or over at our Homeschool Den Facebook Page! Don’t forget to Subscribe to our Homeschool Den Newsletter. You might also want to check out some of our resources pages above (such as our Science, Language Arts, or History Units Resource Pages) which have links to dozens of posts. You might want to join our free Homeschool Den Chat Facebook group. Don’t forget to check out Our Store as well. Happy Homeschooling, everyone!! ~Liesl
Disclosure: Please note that some of the links in this post are affiliate links, and at no additional cost to you, I will earn a commission if you decide to make a purchase.