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Human Body. Human Body What about our brains?. When you are six years old, your brain will weigh three pounds. That is as heavy as it will ever get. Jerry. Human Body Why Do We Have Bones?. When you are grown up, you will have 206 bones. Half of these bones are in your hands and feet.
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Human Body What about our brains? • When you are six years old, your brain will weigh three pounds. • That is as heavy as it will ever get. Jerry
Human Body Why Do We Have Bones? • When you are grown up, you will have 206 bones. • Half of these bones are in your hands and feet. Jerry
Human BodyWhere are the nerves? • Nerves branch out from the brain and the spinal cord. • These nerves then branch out into smaller nerves all over the body. Spencer
Human BodyWhy Do We Have Bones? • If you had no skeleton, you would be a blob! • Your skull protects your eyes and your brain. Spencer
MatterWhat is Matter? • All things are made of matter. • Matter has mass and takes up space. Ryan
MatterWhat are States of Matter? • The three states of matter are solid, liquid and gas. Ryan
MatterWhat is a solid? • A solid is matter that has its own mass, shape, and size. Connor
MatterWhat is a gas? • Gas is matter that can change size and shape. Connor
MatterHow does matter change from one state to another? • When an ice cube, which is a solid, gets warm, it melts into a liquid. • When the liquid gets hot, it turns into a gas. Connor
EnergyWhere do we get energy? • Energy can be found under ground. • Some sources of energy are gas, oil and coal. Jacob
EnergyWhat is electrical energy? • Power plants burn coal and oil to make electricity, which is a form of energy. • The electricity is carried through power lines to our homes. Jacob