Looking for a fun activity for the budding scientists in your family this Independence Day? Explore chemical reactions with some outdoor fun in this science + art activity!
(noun) the state in which matter maintains a fixed volume and shape
(noun) the state in which matter maintains a fixed volume but adapts to the shape of its container
(noun) the state in which matter expands to occupy whatever volume is available
(noun) chemical transformation or change; the action between atoms or molecules to form one or more new substances
- Baking Soda
- Measuring Spoon
- Spray Bottle (or Pipette)
- Food Coloring
- Coffee Filters
- Contact Paper
- Cover a table with sticky contact paper (sticky side up) and tape down to secure.
- Stick the coffee filters all over the sticky contact paper.
- Fill your spray bottle with a ¾ vinegar, ¼ water solution.
- Scoop some baking soda and drop it onto the coffee filters.
- Begin to drip food coloring onto the filters and spray with your solution.
- Watch for the fizzy reactions as the baking soda reacts with the vinegar solution.
- Add more colors, more solution and more baking soda until your fireworks have been fizzing long enough!
- Let your coffee filters dry. Once dry, remove them and see the beautiful creations of your fizzy fireworks.
- From here, you can lay out some new coffee filters and start again!
Baking soda is sodium bicarbonate: each molecule of baking soda contains a sodium atom, a hydrogen atom, an oxygen atom, and a carbon dioxide molecule.
Vinegar contains acetic acid, each molecule of which contains a hydrogen atom, and an acetate ion.
When combined, the hydrogen atom in the acetic acid meets up with the hydrogen and oxygen atoms in the baking soda to form a molecule of water, while the acetate ion grabs onto the sodium atom and forms a salt, sodium acetate. The carbon dioxide molecule, free of its other chemical bonds, can now escape, and bubbles forth as a gas. (via UCSB ScienceLine)