Elastic and Spring Forces

Exploring Elastic Forces Elastic forces are the secret behind how stretched or compressed materials return to their original shape. Elastic force is a restoring force that returns an object to its original shape after it has been stretched or compressed. It makes a...

Osmosis: How Water Moves

What is Osmosis? Osmosis is the movement of water molecules through a semi-permeable membrane from an area of high water concentration to a low concentration to balance things out. A raisin swells in water because water moves into it to balance the high sugar...

Iron: Fuel for your Blood

Iron and Your Blood Iron plays a key role in your health by helping red blood cells carry oxygen from your lungs to every cell in the body. Iron is a key part of a protein in red blood cells called hemoglobin, which binds to oxygen. Without iron, your body can’t make...

Vitamin C and Your Immune System

How Vitamin C Helps Your Body Vitamin C supports your immune system and helps your body stay healthy in many ways. It helps white blood cells (like phagocytes and T-cells) function more effectively to fight off infections. Vitamin C protects cells from damage by...
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