KIDS QUIZ
SCIENCE EXPERIMENTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Dish Soap and Pepper
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Hand Sanitizer and Sugar
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Bar Soap and Pepper
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Dish Soap and Salt
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Detailed explanation-1: -Handwashing with soap removes germs from hands. This helps prevent infections because: People frequently touch their eyes, nose, and mouth without even realizing it. Germs can get into the body through the eyes, nose and mouth and make us sick.
Detailed explanation-2: -The pepper and soap experiment is one of the easiest science activities to help children understand buoyancy and surface tension.
Detailed explanation-3: -But you’re in his debt nonetheless, because it was Dr. Semmelweis who first demonstrated over a hundred years ago that routine handwashing can prevent the spread of disease.
Detailed explanation-4: -But why? Pepper is hydrophobic, which means that it doesn’t like to mix with water. The molecules in water like to join together and create surface tension, so the pepper ends up floating on the top. Dish soap is great at breaking the surface tension of the water, which is how it cleans so well!