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EGGSHELLS AND ACIDS EXPERIMENT
AIM: To observe how different liquids affect the rate of a chemical reaction to eggshells
HYPOTHESIS
What do you think will happen to eggshell​s when they are placed in acids?
Will you be able to see the reaction happen?
Which acid will the eggshells react the fastest to?
WHAT YOU WILL NEED:
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3 eggs
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6 plastic cups
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100mL of lemon juice
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100mL of vinegar
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100mL of soda
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Gloves and apron
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Strainer
SAFETY!
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Put your gloves and apron on before starting the experiment - some acids can damage your skin
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Handle the eggs gently so they don't break - broken eggshells pieces can have sharp edges!
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Handle the liquids with two hands to they don't spill - some acids can cause damage to furniture and you may slip!
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Have an adult help you
STEPS:
1. Place the eggs into the plastic cups. Avoid cracking the eggshells while doing this.
2. Make sure you have 100mL of lemon juice, vinegar and soda.
3. Pour the liquids into the cups with eggs. Be sure not to mix the liquids.
4. Observe the chemical reaction between the eggshells and liquids over the next 4 days.
5. After 4 days, use a strainer to remove the liquids and rinse the eggs
6. Place the rinsed eggs into new cups and observe how the eggshells have changed. You can also touch the eggs to feel how their shells have changed!
Have the eggshells dissolved? Which type of acid has caused the most reaction?
HERE'S A VIDEO OF HOW THE EXPERIMENT IS MEANT TO BE DONE!
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