Energy!

=We are studying energy!= Great Job on your solar ovens! In your notebook make sure you sketched out how the solar oven works. Include: How the black paper absorbs the heat from the Sun; How the tin foil reflects the sunlight onto the bottom of the oven; How the transparent plastic allows all light energy to enter the oven. Check out this video: solar cookers in Africa After you have shown your sketches to a teacher, you will then be given large paper to make an advertisement for your cooked greenhouse treats! You will need to include how the vegetables are cooked, and how this is beneficial to the environment (because it doesn't waste energy or pollute the air!)

If you finish the advertisement, and you have not already watched these links, please watch them now:

all about solar energy solar energy movie solar energy using solar energy future of solar

If you would like to do some research on the nutritional benefits of greenhouse vegetables, you can look here: whole foods recommends kale all about swiss chard all about peppers all about oregano all about chervil all about chives The benefits of eating kale

Today you will work with three other people to make a solar oven. 1 person will glue down the black paper inside the bottom of the box, and on the top of the box 1 person will glue strips of aluminum foil on the bottom (on top of the tin foil) and tin foil on the inside flap of the cover 1 person will glue clear plastic to the inside cover. (Ask an adult for help on this:) 1 person be the Group Leader (It is your job to make sure everyone has all their materials, and cleans up afterwards) As soon as you decide who will do each part, raise your hands to tell Shakira. 1 person at a time will come over to work with Shakira- first the Group Leaders, then those doing the black paper, then those doing the aluminum foil, and finally those doing the plastic.

Read about heat energy on pages 460-465 in the "Energy" textbooks. In your notebooks answer questions 1,2,3 and 5 from page 465. Now do the "InstaLab" and record the best conductor We will first learn how to conserve heat energy with a fun experiment to learn about

Light Energy Light game

=Games= light energy game sound energy game We are starting to learn about sound

Sounds are all around us—cars honking, phones ringing, friends talking, and dogs

barking are all sounds you are probably familiar with. So, what is sound?

Sound is a type of energy made by vibrations. When any object vibrates, it causes movement in

the air molecules. These particles bump into the air molecules close to them, which

makes them vibrate too, causing them to bump other air molecules. This movement is

called sound waves.

Sound starts with a vibration. The vibration pushes into molecules and creates a

wave of sound. The sound wave moves, but the medium remains in place. The

molecules don’t move very far. It is the wave that travels as the molecules bump into one

another. The sound wave starts at whatever is making the sound (by vibrating) and

travels all the way to your ears, where you hear it.

Have you noticed that it is really loud in the greenhouse? It is hard to communicate. Please use a piece of string and two yogurt cups to make a telephone to communicate with someone across the room.

The Plastic Cup Telephone:

By talking into a cup, the vibrations from the vocal chords make the air in the cup vibrate. These vibrations are transferred to the bottom of the cup, which in turn vibrate. The same vibrations are traveling along the string in longitudinal waves, making the bottom of the other can vibrate. The air in the receiving cup is thus reproducing the exact vibrations of the first cup, resulting in the same voice of the original sender. A whisper could not be heard through the air compared to a whisper through the “telephone”. The waves travel through the solid string in the latter case, and it is much more facilitated.


 * Sounds travel faster and easier through solids than through gases.**

new sound game

Light game Keep your notebook open to write down 5 facts about light that you learned from the game. Then select one and write it in the discussion post here

Include: How the black paper absorbs the heat from the Sun; How the tin foil reflects the sunlight onto the bottom of the oven; How the transparent plastic allows all light energy to enter the oven. You will need to include how the kale chips are cooked, and how this is beneficial to the environment (because it doesn't waste energy or pollute the air!)

If you have not already watched these links, please watch them now: solar cookers in Africa

You can do some research on the nutritional benefits of kale here: whole foods recommends kale The benefits of eating kale

=play the game below:= Light Energy Light game

Click on the left hand side to learn about Energy!!