Hey Kids, ever wonder how you can make your own invisible ink or write glow-in-the-dark messages? Look no further, these easy and fun to make homemade invisible ink and glow-in-the-dark recipes will have you writing like a secret agent in no time.

Check out the recipes below to make your own homemade invisible ink and Glow in the Dark message recipes for Kids

Invisible Ink with Lemon Juice experiment #1
Materials:
- 1 lemon cut in half
- 2-3 drops of water
- spoon
- small bowl
- cotton swab or Q-Tip
- white computer paper
- lamp
Step 1: Squeeze both halves of your lemon over the bowl.
Step 2: Add 2-3 drops of water to the lemon juice and mix with your spoon.
Step 3: Dip the cotton swab or Q-Tip into the mixture and write your message on the white computer paper.
Step 4: To see your message hold your paper up to the light. After a little bit, your message will show up on the paper.
How does this work? The lemon juice oxidizes (combines with oxygen) and turns brown when it heats up. The light heats up the lemon juice enough for it to turn brown revealing your message!
You can also try this experiment using milk, grape juice, apple juice, or vinegar.
Invisible Ink with Lemon Juice experiment #2
Materials:
- 1 lemon cut in half
- bowl,
- cotton swab, or Q-Tip
- white computer paper
- salt
- wax crayon
Step 1: Squeeze both halves of your lemon over the bowl.
Step 2: Dip your cotton swab or Q-Tip in the lemon juice and write your message on the white computer paper.
Step 3: Before the lemon juice message dries pour some salt over the message.
Step 4: Wait about 2 minutes then wipe all the salt away.
Step 5: Color over the entire message with a wax crayon and your message will be revealed.
White Crayon Invisible Ink Recipe
Materials:
- white wax crayon
- white computer paper
- highlighter or watercolor paints
Step 1: Write a message on your paper using a white crayon. Make sure children are pressing firmly while writing on the paper.
Step 2: Color over the entire paper with a highlighter or paint it with watercolors and your message will be revealed.

Glow in the Dark Ink Recipe
This glow-in-the-dark ink is perfect to make in the classroom for a fun writing activity, or something fun to do at home with the kids. It’s also great for Halloween parties!
Materials:
- Petroleum Jelly or Vaseline
- cotton swab or Q-Tip
- backlight
- white computer paper
Step 1:Dip your cotton swab or Q-Tip in the Petroleum Jelly or Vaseline.
Step 2:Using the dipped cotton swab or Q-Tip, write your message on the white computer paper. Try to write as smoothly as possible getting rid of any clumps of vaseline.
Step 3:Turn off all the lights and turn on the blacklight, Your message will be revealed!