Salt (6 tablespoons)
A tall drinking glass
Care should be taken when doing these experiments. Make sure to avail of some extra helpers to help prepare the experiments and tidy up afterwards. Make sure to explain the experiment and the materials being used. It’s important that the Ladybirds listen to the instructions as health and safety of the girls is a priority. Baking soda and vinegar are not for eating! Always be careful when doing games or experiments with water and ensure that the Ladybirds are supervised.
• Pour water into the glass until it’s about half full
• Stir in the salt
• Carefully pour in plain water until the glass is nearly full. Be careful not to disturb or mix the plain water with the salty water.
• Gently lower the egg into the water and watch the egg float into the middle.
• Why? Because the salty water in the bottom of the glass is denser than the water at the top of the glass.
Trefoil News Spring Edition 2017
Attachments/Template needed for activity?