EggSperiment!

Hello!

Some of you must have conducted this experiment in your Science class while teaching about Teeth. It's an interesting experiment and gives a chance to the kids to put on their THINKING CAPS!. Also, what is relaxing is, it requires simple preparation.

You will need:

• a hard-boiled egg
• some cola
• a glass jar
• a worksheet with 3 main columns -  observation, hypothesis and conclusion. You may add extra columns for them to draw  as well. 

Tell your class that you will be conducting an experiment for them and they have to observe it very carefully. Discuss the keys words like -  observation, hypothesis and conclusion. After watching the experiment ask them to record their observation and write their hypothesis. They can hold on to writing the conclusion for the time.

Display all the materials needed for the experiment on a table. Ask your students to gather around it and observe the materials carefully. Help them build a connect between the egg and their teeth. Tell them that the outer shell of an egg is similar to our enamel. Also, discuss the ingredients used in a cola. This will help them come up with well-reasoned hypothesis. 

Alright, it's time to EggSperiment!

• Take the glass jar and place it in front of the class.
• Pour the cola in the jar.
• Dip the egg in cola.

                                                     Now, time to make the little ones wonder! 

Ask them, 'What will happen to the egg if it stays in cola for one day?' (Remind them to make their connections between the egg and their teeth and also keep in mind the ingredients that make cola). Their answers will take you by surprise!

The egg turns BROWN!!

The next day, bring the glass jar in front of the class and show it to them. The result may take a few by surprise and most of them won't like the look of the egg.
I got reactions like, 'Yuck!', 'Ew', 'Gross' and so on. 

Encourage them to write the conclusion and complete the recording. As an extension, you could also take a toothbrush and some paste and brush the egg shell. It starts decolouring and the importance of brushing everyday is visibly clear. 

Keep experimenting!