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Having preschoolers, I know how curious they can be and how their minds can run 100 mph asking all sorts of “why” questions. These 8 science experiments are easily conducted at home and engage your preschooler for some hands-on learning. Teach them about viscosity, chemical reactions and even make a rock! These will no doubt stimulate young minds to want to learn more.

Naked Egg Experiment (via eHow) This 2 ingredient experiment explores how an acid from vinegar breaks down the calcium egg shell to reveal a cool, rubbery egg.

Blow Up a Balloon with Yeast (via Tinkerlab) Kids will be amazed as they learn that bubbles from combining yeast, warm water and sugar can actually push air into a balloon inflate it!

Borax Crystals (via Housing a Forest) Shape pipe cleaner into ornaments and mix in Borax and hot water. Borax, which is naturally in crystalline form, melts into hot water and turns back to its crystal shape once the water cool.

Make a Rock (via Fantastic Fun and Learning) By building their own rocks from sand, pebbles and glue, kids will be learning about geology before you can even say “igneous.”

Salt Water Egg Experiment (via Explorable) Why does an egg float higher in salt water than fresh? Conduct this density experiment to find out why.

Viscosity Experiment (The Mother Huddle) Using cornstarch and water can teach kids about viscosity – is it a liquid or a solid? This is also makes a fun sensory activity.

Grow an Avocado Tree (via The Hungry Mouse) This experiment comes together quickly with just an avocado tree, toothpicks and water – although patience is required for the couple of months it will take to see the first sprout.

Baking Soda Ice Cubes (via Science Sparks) Gently add vinegar to these baking soda cubes and watch in amazement as bubbles and fizzing occurs from the relase of carbon dioxide.

Agnes Hsu is a mom of three and has been inspiring parents and kids to get creative with easy activities and family friendly recipes for over 10 years. She shares her love for creative play and kids food to her 2MM+ followers online. Agnes' commitment to playful learning and kindness has not only raised funds for charity but also earned features in prestigious nationwide publications.