# @thespacegal on Instagram

- **Type:** Video
- **Original URL:** https://www.instagram.com/p/DSSvH45kXL4
- **Gondola URL:** https://gondola.cc/posts/37890183-thespacegal-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/postThumbnails/963a7639d1.jpg
- **Posted:** 2025-12-15T17:46:00.000+00:00
- **Account Owner:** Emily Calandrelli (@thespacegal) — https://gondola.cc/thespacegal

## Caption

Day 6 of Science Mischief!

Follow along for 12 days of science mischief with Dr. Ralph Science Elf. 

📝HOW TO 🧪
Fill a glass with water. 
Take out the inside of a yellow highlighter and squeeze the liquid in. 
Fill up the glass the rest of the way with oil (doesn’t matter which kind)
SNOW: you can either use salt or crush up alka seltzer for a more bubbly effect. 
☝🏼TIP: if you use alka seltzer make sure there are some bigger chunks in there so they sink easily
❄️Bring to a dark place, Turk on a black light, and sprinkle the snow in!

🧪 THE SCIENCE 🤓
Yellow highlighter contains fluorescent chemicals. When you shine ultraviolet light (which has more energy than a regular flashlight) it EXCITES those fluorescent chemicals and they RELEASE that energy as GLOWING light!
❄️The SNOW:
🧂If you used SALT - it sank bc it is more DENSE than water, dragging down some oil with it. But once it dissolved in the water the oil rose back up to the top!
🫧If you used ALKA SELTZER - this contains an acid and a base and when combined with water it creates carbon dioxide bubbles!

Follow along for more Science Elf ideas!

## Stats

- **Views:** 3,401
- **Likes:** 700
- **Shares:** 0
- **Comments:** 22

## Tags

elfontheshelf, elfontheshelfideas

---
Copyright (c) Gondola