Create a fun and messy Fall sensory play activity using oobleck and freshly fallen leaves. It’s super easy sensory activity for toddlers and preschoolers!

Oobleck is a great sensory material that is nontoxic and super easy to make.

It is also addictively fun to play with. My three year old get so excited when I ask her if she wants to do a goop  (that’s what we call oobleck in our house) activity.

If you haven’t tried it, you and your little one are in for a treat!

How to Set Up Oobleck & Leaves: Fall Sensory Activity

Supplies

(This post and list contains affiliate links for your convenience. If you make a purchase using one of these links, I may earn a commission. Please visit my disclosure policy for more information.)

• Corn Starch
• Water
• Shallow Baking Dish
• Spoon
• Freshly fallen leaves

Making Oobleck

When I make oobleck, I don’t follow an exact recipe. I generally add the corn starch and then slowly add water stirring it as I go until the consistency is goopy but not watery.

If your mixture is too watery add a bit more corn starch. If it’s a bit too stiff add a little more water. A good rule of thumb is 2 cornstarch to 1 water.

When I said we were going to do a goop and leaf activity my three year old could wait to get started and wanted to help with the mixing. I let her keep the spoon to help play with the oobleck.

I then added some freshly fallen leaves and let her play.

She played with this for quite a while.

She covered the leaves in oobleck. Feeling how their texture change as they got covered.

She played with this for so long that I had to add a bit more water to the mixture as it started to get dry.

When oobleck dries it converts back into a powder state. So if any gets on the floor it’s best to leave it a while until it dries and then it will be easier to clean up.

Clean Up

Same goes for disposing the entire mixture in the backing pan when your child done. Letting it dry and then disposing it in compost or garbage is best.

WILL YOU TRY OOBLECK & LEAVES: FALL SENSORY ACTIVITY WITH YOUR TODDLER OR PRESCHOOLER? Pin it for Later!