Today’s theme for STEM-ing At Home is focused on one of our favorites —chemistry.

Become a Chemistry-Spy for the Day- Make Invisible Ink

Who wants to become a Chemi-Spy for a day?  Channel your internal spy persona with this fun STEM activity.  The kids can create secret messages as part of a scavenger hunt.

Materials:

• Baking soda

• Paper

• Water

• Light bulb (heat source)

• Paintbrush or swab

• Measuring cup

• Purple grape juice (optional)

Make invisible ink by following the simple instructions at ThoughtCo.

Making Slime

Did you know you can make your own slime for a fun learning and play activity? Non-Newtonian liquids are fascinating for all ages and provide a great learning opportunity about chemistry. 

Materials:

• School Glue / White Glue / Elmer's Glue

• Borax (Sodium tetraborate)

• Food coloring (optional)

• Water

• Two bowls

Make four types of slime by following the instructions at Home Science Tools.

Explore Metal Properties

Using pennies, nails, and a few simple household ingredients to explore some of the properties of metal. Learn why certain materials can clean or discolor pennies.

Materials:

• 20-30 dull pennies

• 1/4 cup white vinegar (dilute acetic acid)

• 1 teaspoon salt (NaCl)

• 1 shallow, clear glass or plastic bowl (not metal)

• 1-2 clean steel screws or nails

• Water

• Measuring spoons

• Paper towels

Conduct this experiment by following the instructions at ThoughtCo.

When you’re done, post your completed projects on social media, tag @PinkSpaceTheory and use #PSTSTEMing, and we’ll be sure to share them.