Do you have dinosaur obsessed kids? Have they ever wanted to hatch their own dinosaur egg? Last week we did just that using a little science, chemistry to be exact. It was so much fun the kids keep begging to do it again. This activity is great for all ages and abilities, even adults get involved in the science fun!

Hatch Dinosaur Eggs with Science

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Last week we hosted a family reunion and as the host I knew I had to come up with some activities to keep the kids entertained. I had all boys from 3 to 10 years old and for a while I struggled to come up with something that would work for everyone.

Finally the answer came to me, hatch dinosaur eggs! And it was a HUGE hit!

Check out our Dino Egg Hatching in this Video

The kids went nuts!

All the kids were able to participate. They just need to be old enough to use a medicine syringe without squirting themselves. For the younger guys this was some great fine motor strengthening.

Seeing the chemical reaction was a hit with all ages and even the adults got all excited as we could see bits of our dinosaurs coming out.

My boys especially loved trying to guess what type of dinosaur it was while it was slowly being revealed.

Once hatched the boys gave the dinosaurs a little extra cleaning.

And the colours! Oh it was sooooo beautiful to see how they are swirled together, changing and blending throughout the hatching.

This activity would be great at a party (what a way to get a nice keepsake from the party!), in a classroom, as part of a science experiment or even a dinosaur unit study. So many fun applications. I also think you could create some gorgeous imprint art if you carefully laid some canvas over the bin once the eggs were all hatched.

How to Make A Dinosaur Egg

You will need:
Baking soda
Water
Food colouring
Syringes
White vinegar
Casserole dish or some other container
Dish soap
Dinosaur toys
Parchment paper

Optional:
Rubber gloves
Safety glasses

Vinyl Mini Dinosaurs (72 count) Arm & Hammer Baking Soda – 16 oz Wilton Color Right Performance Color System, 601-6200 10ml Oral Syringe with Cover- 15 Syringes by Care Touch (No needle) MedPride Nitrile Exam Gloves, Powder-Free, Small, Box/100 Premium Quality Children’s Safety Glasses

Directions – Chemistry fun with a Dino Twist!

The first step is to colour your baking soda. I found one box of baking soda made approximately 3 eggs, depending on the size of your dinosaur. Simply add your drops of colour and carefully mix. I highly recommend you use gloves. I didn’t the first time and my hands were dyed for two days.

Once the baking soda is coloured carefully added some water. For one box of baking soda I used approximately 1/4 cup of water. Add it slowly and mix thoroughly before adding more. You want it to just start to become paste like so it will stick together.

Hatch baking soda dinosaur eggs with science in this fun chemistry activity that will capture the imagination of all ages! Simple, fun chemistry lesson.

I liked making multiple batches of different colours so we could make our eggs multiple colours. For some extra fun, hide one colour in the middle with a different colour on the outside. Another trick is to add sparkles or glitter to the middle so they are released during the experiment as your dinosaur is coming out. The combination of new colours, glitter AND a dino baby really gets the kids excited!

Take a palmful of the paste and squish it about to make a ball. Press in a dinosaur. Then add more paste to the top and sides until the entire dinosaur is encased.

Place your dinosaur egg on parchment paper on a cookie sheet and set in the freezer.

Freezing helps to set the baking soda dinosaur eggs. I actually dropped one after it was frozen and it didn’t break. Perfect for little hands that want to explore the eggs before they start hatching. They freeze very quickly and are ready within an hour, or leave them in overnight.

Ready for Hatching!!

When you are ready for the big hatching, set the baking soda dinosaur eggs in a large dish. I liked using a casserole dish so you could see from all sides, but any dish will work.

Dribble some dish soap on the bottom of the bowl.

Pour some vinegar in a cup or bowl and give the kids each a syringe.

Squirt your baking soda dinosaur egg to start them hatching!

The reaction is a simple baking soda and vinegar reaction, much like our bottle rockets, but this was a different way to explore that reaction. Plus, it’s fun!

A couple words of caution:
– Wear rubber gloves when making the eggs or you will colour your hands! See my Instagram for proof.
– You may wish to have the kids wear safety glasses depending on their age and competence with the syringe, vinegar in the eyes is not fun.
– If you or any of the kids have hangnails or any cuts to their fingers, consider rubber gloves, that vinegar stings!
– This can be a messy activity! Prepare the area appropriately.

The Science Behind Hatching a Dino Egg

This dinosaur egg activity explores the popular baking soda and vinegar reaction. During this chemical reaction, the vinegar reactions with the baking soda. Vinegar or Acetic Acid has the chemical formula CH₃COOH . Baking soda is a base also known as Sodium Bicarbonate and has the chemical formula ‎NaHCO₃ . During this reaction the products are sodium acetate ( C₂H₃NaO₂ ). Sodium acetate is made of 1 sodium ion, 2 carbon atoms, 3 hydrogen atoms, and 2 oxygen atoms. The other products are water ( H₂O) and carbon dioxide ( CO₂ ). Carbon dioxide is the gas that causes the bubbling during the reaction.

Taking Dino Eggs Chemistry to the Next Level

Why not use a digital thermometer to test if the reaction is exothermic or endothermic?

Use candy or a chemistry model set to build and demonstrate the chemical reaction that is taking place.

Use canvas placed gently on top of the beautiful resulting liquid to create gorgeous art!

Get A Dinosaur Matching Game

Add more fun to your day of roaring and learning with this fun printable Dinosaur Matching Game! Members of the STEAM Powered Family Mailing List get access to free educational resources like this one.

Don’t Miss Dinosaur Bath Bombs!

You love this activity so much, we created a new version that kids are going crazy over! Dinosaur Bath Bombs. This DIY project teaches more advanced chemistry and kids love taking their Dino Eggs into the bath tub and hatching their baby dinosaur. A fantastic follow up activity to this one with a more advanced chemistry lesson.

Dinosaur bath bombs made with love for young paleontologists

Kids Learning Activities

Bottle Rockets - Simple and Fun Summer STEM with Chemistry and Engineering

On a blue wood slate table lays a game named Dinosaur Name Matching Game with some dinosaur figures

4 different egg projects are shown with the overlay text Egg Experiments and STEM Projects

simple baking soda and vinegar chemistry experiment hatching dino eggs

5 from 1 vote

How To Hatch Dino Eggs Science Experiment

Kids of all ages love hatching Dino Eggs in this fun and easy Chemistry experiment.

Prep Time 30 minutes

Time 20 minutes

Setting 1 hour

Total Time 1 hour 50 minutes

Servings 3 eggs

Supplies

1 box baking soda
4-5 drops food colouring
1/4 cup water
1/2 cup vinegar
1 tsp dish soap

Instructions

Divide your baking soda into as many bowls as you want colours.
Add your food colouring and mix until your baking soda is evenly coloured. Wear gloves and do this with your hands.
Add water, a little bit at a time (think 1 tsp to 1 tbsp at a time depending on the amount of baking soda in your bowls). Mix well. Stop once it forms a sticky paste.
Take a palmful of the paste mixture. Set a dinosaur toy in the middle, then pack more paste around it to form your dino eggs.
Set your dino eggs on parchment paper on a tray that will fit in your freezer.
Once you have made all of your dino eggs, place the whole tray in your freezer until they are frozen solid. I found 1 hour to be about right. I have also left them overnight before a party.
Once frozen, take out your dino eggs and place them in a large bowl, or high sided tray or dish. Sprinkle with dish soap.
Fill a small dish with vinegar.
Have your child wear gloves and safety googles, then give them the syringe and let them have fun hatching their dino egg by squirting vinegar on the eggs.