Resources:
• A clean 1 litre clear soft drink bottle
• 3/4 cup of water
• Vegetable oil
• Antacid tablets (such as Quick-Eze or Mylanta)
• Food colouring
Procedure:
- Pour the water into the bottle.
- Use a measuring cup to slowly pour the vegetable oil into the bottle until it’s almost full. You may have to wait a few minutes for the oil and water to separate.
- Add 10 drops of food colouring to the bottle; the drops will pass through the oil and then mix with the water below.
- Break an antacid tablet in half and drop it into the bottle. Watch it sink to the bottom and watch the lava start to flow.
- To keep the effect going, just add another piece of antacid tablet.






