Energy

Energy What is meant by the word energy? What do we energy for? What does energy do?

Energy Vocabulary Vocabulary What I learned today Sketch Energy makes things happen All actions are the result of energy Energy is the ability to do things energy Electricity Heat Light Motion Chemical Sound Types of Energy

Energy Vocabulary Vocabulary What I learned today Sketch Batteries Food Fuel (gas and candle wax) Muscles Sun Sources of Energy Energy that is available to make things happen Batteries Wood Gasoline Candle wax Stored energy or Potential Energy

Energy Vocabulary Vocabulary What I learned today Sketch Plants use solar energy to grow (Sun) As plants grow they store energy When humans and animals eat plants we change the stored energy into energy to help us move Energy from the Sun

Flashlight Challenge What do you think we can do to get the flashlight to work? What action did you observe? The flashlight made light. What kind of energy caused that action? Electricity

Flashlight Challenge What was the energy source? The batteries Where was the energy stored? In the batteries What was the stored energy converted into? Electricity was converted into light The energy in the battery converted into light energy.

Energy Stations Station 1: Solar Cell—Do together Station 2: Tone Generator Station 3: Motor Station 4: Candle and hand rubbing

Station 1: Solar Cell What action did you observe? The motor shaft turned. What kind of energy cause that action? Electricity What was the energy source Solar cell Where was the energy stored? Sun What was the stored energy converted into? Motion The energy in the Sun changed into motion energy.

Station 2: Tone Generator What action did you observe? The speaker made a sound. What kind of energy cause that action? Electricity What was the energy source battery Where was the energy stored? In the battery What was the stored energy converted into? sound The energy in the battery changed into sound energy.

Station 3: Motor What action did you observe? The motor shaft turned What kind of energy cause that action? electricity What was the energy source battery Where was the energy stored? In the battery What was the stored energy converted into? motion The energy in the battery changed into motion energy.

Station 4A: Candle What action did you observe? Heat and light What kind of energy cause that action? Burning/flame What was the energy source wick Where was the energy stored? What was the stored energy converted into? The energy in the wick changed into heat and light energy.

Station 4B: Rubbing Your Hands What action did you observe? Heat What kind of energy cause that action? movement What was the energy source muscles Where was the energy store? What was the stored energy converted into? The energy in the muscles changed into heat energy.

Energy Source Questions What is energy? Energy makes things happen. All actions are the result of energy. Energy is the ability to do things.

Energy Source Questions What are some of the different kinds on energy? Electricity Heat Sound Light Motion Chemical energy

Energy Source Questions 3) What are some of the sources of stored energy that people use? Batteries Fuel Foods How are food, fuel, and batteries alike? They have energy stored as chemical energy.

Energy Source Questions 5) What is the source of most of the energy used by people? Explain. The Sun. Plants capture the Sun’s energy as chemical energy. That energy is in food and fossil fuels (gas). Food and fuel are the energy sources that people use most often.

Resources Game Inexhaustible Renewable Non-Renewable Will never run out Can be reused or recycled Will run out Oil Gold Diamond granite Sun Ocean Wind Tree Corn Wheat Logs cow Game

Energy Conversion Potential Energy or stored energy—energy that is available to make things happen Kinetic energy—the energy of motion. All moving objects have kinetic energy.

Energy Conversion Stored-Energy Source Energy Action Sun Candle Gasoline Battery Apple Wood Light, Heat, Electricity, Chemical Light, Heat Heat Light, Heat, Electricity, Machine Motion Muscle Movement, Heat

Energy Conversion See that truck driving by? It is powered by sunlight. Brad’s friend said, No it isn’t, it’s powered by gasoline. Explain why Brad said the truck was powered by sunlight.

Energy Conversion Energy from the Sun is absorbed by plants and converted into chemical energy (food). The chemical energy changed into oil, a fossil fuel, which is made into gasoline. The gasoline is burned, releasing heat. Heat drives the car forward. The original source of energy was the Sun, so the car is driving on solar energy that has been converted into other forms by plants and burning. Using Energy Video

Using Energy Questions What is stored or potential energy? Energy that is available to make things happen. What is kinetic energy? The energy of motion. All moving things have kinetic energy.

Using Energy Questions Name at least three types of energy that come from the Sun? Heat Light Electricity Chemical

Using Energy Questions 4) What is the source of most of the energy used by people? Explain how it works. Plants use solar energy (sun) to grow. Plants grow and store energy. Humans and animals eat plants and change the stored energy in the plants into energy to help them move and grow.

Energy Transfer Vocabulary What I learned today Sketch The movement of energy from one thing to another or the change of energy form one form to another Energy is moved (transferred) from one place to another by: wires, moving objects or waves Energy transfer Repeating movement like up and down (transverse wave) or back and forth (compression wave) wave

Water Waves What action did you observe? Waves in the water Where did the energy come from? Muscles pushing Where did the energy go? To the ball What carried the energy? Water waves The energy in hand muscles move through the water waves and ended up moving the ball.

Station 1: Tone Generator What action did you observe? Rice vibrating Where did the energy come from? battery Where did the energy go? To the rice What carried the energy? Waves in the air The energy in battery move through the air and ended up in the moving rice grains.

Station 2: Spring Toy What action did you observe? waves in the spring Where did the energy come from? Pulling the spring together Where did the energy go? Up and down the spring What carried the energy? The metal spring The energy in hand muscles move through the spring and ended up moving the spring.

Station 3: Bowling What action did you observe? Ball knocking bottles Where did the energy come from? hand Where did the energy go? The bottles What carried the energy? Moving ball The energy in arm move through the ball and ended up in the bottles.

Station 4: Battery and Motor What action did you observe? Motor shaft turning Where did the energy come from? battery Where did the energy go? motor What carried the energy? wires The energy in battery move through the wires and ended up turning the motor shaft.

Energy Transfer Questions Where do people get energy? From food Why does a car need gasoline to run? Gasoline is fuel that is burned to make the power to move the car.

Energy Transfer Questions What kinds of things have moving energy? A skateboard moving downhill, a falling ball, and a person running What are some examples of stored energy? Food, a battery, gasoline for cars, and wood for fires

Energy Transfer Questions How can stored energy change into active, moving energy? -Rolling a bowling ball down an alley -Rolling downhill on a skateboard -Burning gasoline to power a car -Burning wood to make steam to drive a train What is fuel used for? Fuel is stored energy that is burned to make things happen.

Energy Transfer Questions How does energy from the Sun get converted into energy that can be used by humans and other animals? Plants use solar energy (sun) to grow. They store energy. We eat the plants, the stored energy is changed into energy to help us move and grow.

Energy Transfer Summary Energy is carried from one place to another by waves, electric current or moving objects. Sound Waves--Objects push on air creating waves. Waves move through the air until they hit your ear. The energy in the sound wave moves the bones in your ear, and you hear sound. Video