We love all activities that involve baking soda and vinegar. There’s something absolutely magical about that reaction and we just can’t seem to get enough of it. So we have given this well-loved preschool science experiment a dinosaur twist this month.

Your preschooler is absolutely going to love this activity, and you’re gonna love knowing that they are learning so much science and really working those fine motor skills.

Lil’ Explorers Focus Skills

Science

  • Pose “what” and “why” questions about their surroundings
  • Make predictions and perform experiments
  • Understand 3 of the 5 senses to make observations

Engineering

  • Construct models to represent their imagination and objects in the world
  • Build using a variety of materials in both conventional and unconventional ways
  • Use tools with appropriate safety and purpose

Fine Motor Skills

  • Coordinating the use of arms, hands, and fingers together to manipulate objects with increasing accuracy
  • Engage in activities that require hand-eye coordination

Lil’ Creators Focus Skills

Science

  • Pose “what,” “why” and “how” questions about their surroundings
  • Make predictions, perform experiments, and discuss results
  • Use 5-senses to make observations

Engineering

  • Construct models to represent their imagination and objects in the world
  • Build using a variety of materials in both conventional and unconventional ways
  • Use tools with appropriate safety and purpose

Fine Motor

  • Coordinate the use of hands, wrists, and fingers to complete tasks that require more precise movements
  • Engage in activities that require hand-eye coordination with increasing accuracy

Required Materials

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Baking Soda

Vinegar

Water

*Toy Dinosaurs

Food Coloring

*Squeeze Bottle

Step #1

Combine baking soda with water so that it has a moldable consistency.

We combined one whole box of baking soda with 1/3 cup water. 

Step #2

Take plastic dinosaurs and cover them in your baking soda mixture to create a dinosaur egg.

We let our eggs dry overnight but you could definitely use them immediately.

Step #3

Pour vinegar into a squeeze bottle. You can add food coloring to make a little more exciting if you want.

Step #4

Use the squeeze bottle to pour vinegar over the eggs and watch your dinosaurs hatch.

Teacher Tip

Take this lesson up a notch and really focus on those science skills with your conversations. Ask your Lil’, “What do you think will happen when you squeeze vinegar on the baking soda?” Then once you’ve made your prediction complete the experiment, and talk about your observations. Verbalizing this will help your Lil’s internalize the science aspect of this engaging preschool activity. 

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