Exploding Sidewalk Chalk Experiment

Miss Evans, a fourth-grade teacher, guides students through an exciting experiment with exploding sidewalk chalk. The video covers the materials needed, decorating a Ziploc bag, preparing a vinegar mixture, creating a baking soda bomb, and executing the experiment. Miss Evans emphasizes the importance of improvisation when things don't go as planned and encourages creativity with colors. The experiment demonstrates a chemical reaction, making it a fun and educational activity for students.

What is the first step in preparing for the exploding sidewalk chalk experiment?

• Creating the baking soda bomb

• Drawing a picture on the Ziploc bag

• Gathering all the materials needed

• Mixing vinegar and cornstarch

What should you draw on the Ziploc bag for the experiment?

• A picture of a star

• A picture of a sun

• A picture of a planet

• A picture of a moon

What is the role of food coloring in the experiment?

• To stabilize the mixture

• To enhance the explosion

• To neutralize the reaction

• To add visual appeal

What is the purpose of the baking soda bomb in the experiment?

• To make the bag heavier

• To create a reaction with vinegar

• To hold the mixture together

• To add color to the mixture

How should the baking soda be prepared before adding it to the bag?

• Placed directly in the bag

• Dissolved in vinegar

• Wrapped in a piece of toilet paper

• Mixed with water

Where should you perform the exploding sidewalk chalk experiment?

• Outside where it can get messy

• In a kitchen

• In a garage

• In a classroom

What is the expected outcome when the baking soda bomb is added to the vinegar mixture?

• The bag will remain unchanged

• The bag will expand and explode

• The bag will change color

• The bag will deflate

What should you do if the experiment does not explode as expected?

• Leave it as it is

• Add more vinegar and try again

• Add more baking soda and try again

• Throw it away and start over

What should you do if the initial explosion does not occur?

• Add more food coloring

• Add more baking soda

• Add more cornstarch

• Add more toilet paper

What is a creative way to use the sidewalk chalk after the experiment?

• Use it to decorate furniture

• Use it to create colorful designs outside

• Use it to draw on paper

• Use it to paint indoors