Making a wave in a bottle

You will need; Clear plastic bottle, water, oil, food colouring, a funnel, and hot glue if you want it not to leak! You can also include small toys/trinkets like googly eyes or beads to add to the wave bottle

Place the funnel in the mouth of the bottle and let your child pour water into the bottle until it is 2/3 full. The exact amount of water isn't important, you just want to make sure that you have a good distribution of oil and water at the end. Add a few drops of food colouring to the water and swirl to mix.

Keep the funnel in place and pour the oil into the bottle. Keep pouring until the bottle is almost full. If you're adding decorations make sure you leave enough space so the bottle doesn't overflow. At this point, you can drop in any decorations that you want. Add beads, glitter, or any other small trinkets you'd like. You can pour the oil slowly or quickly. If you let the oil and water sit, they will separate over time.

Hold the bottle horizontally and gently tilt it up and down. As you tilt, watch the water make a wave in the oil. Enjoy!

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