Showing posts with label Circuits. Show all posts
Showing posts with label Circuits. Show all posts

Wednesday, August 5, 2009

Friday, July 24, 2009

Making Circuit Games

Our games are all tested and just about everyone was sucessful. We will add a photo show of our games. They were fantastic and presented beautifully. Well done everyone.

Monday, June 8, 2009

Today our self-regulated reading group completed this experiment. At first it did not work but they tried out different things. A tip they have for you is to make sure the lemon is juicy(the juices are activated).

Did you know you can make electricity without a battery? You can make a small amount of electricity with a lemon. To make a lemon battery and feel the electric "juice" flow, just read the materials and procedure below.

You'll need these materials to make the Lemon Battery:

  • 1 straightened paper clip
  • 1 piece of copper wire
  • 1 juicy lemon
  • 1 sharp knife
What to do:
  1. Shake and roll the lemon on a table to "activate" the juices in the lemon.
  2. With the help of an adult, cut two small slices in the lemon about a cm apart. The copper wire and paper clip will go in these slits.
  3. Place the copperwire into one slot and the straightened paper clip into the other slot.
  4. With your tongue touch both the wires at the same time. Can you feel anything? Maybe a tingling?
This is what we found out:

The acid in the lemon reacts differently with each of the two metals. One of the wires contains positive electric charges, while the other contains negative electric charges. These charges create current, which will flow if the battery circuit is complete. Your tongue acts like a wire and conducts the charges, making the circuit complete. The complete electric circuit causes a small amount of electricity to flow, which causes the sensation on your tongue. Regular batteries are very similar to your lemon battery.

Wednesday, May 27, 2009

Making a Switch

Today we made switches using a cork, 2 drawing pins, a paper clip. We then attached this to a circuit and tried our switches. They all worked!



Tuesday, May 26, 2009

Circuit Work






What a lot of work we have covered over the past two weeks. Lots of hands-on circuit work where we've made buzzers, lights, switches and motors work. Also we have made word-searches, worksheets for other children, experimented with conductors and insulators, leaned about the symbols for electricity and more! Here are some photos for you all to look at.

Wednesday, May 20, 2009

Circuits


Yesterday we had to draw what we thought as circuit looked like. There were lots of interesting, pictures and words to describe our drawings! We then explored and found lots out about circuits. What a difference today! We all can draw a diagram of a circuit and label the parts.
Today we used the BBC resource to explore conductors and insulators. We had to predict what materials are insulators and which are conductors.

Conductors
allow electricity flow through them. Conductors are materials that can carry electricity - they conduct electricity. We found out that the following materials are good conductors of electricity...
copper aluminium graphite iron steel

Our conclusion was that most metals are good conductors of electricity.

Did you know that water, platinum, silver, gold, people, animal & trees are also good conductors of electricity?

Insulators do not allow electricity to flow through them. These materials are good insulators...
wood plastic rubber glass cloth
Did you know that porcelain is also a good insulator?

Electricity will always take the shortest path to the ground. Your body is 60% water and that makes you a good conductor of electricity. If a power line has fallen on a tree and you touch the tree you become the path or conductor to the ground and could get electrocuted.

The rubber or plastic on an electrical cord provides an insulator for the wires. By covering the wires, the electricity cannot go through the rubber and is forced to follow the path on the aluminum or copper wires. ( from http://tristate.apogee.net/kids/lewc_ifrm.aspx)

Tuesday, May 19, 2009

Circuit Games and Activities

Try these games and activities to learn more about circuits.



Find out what materials are conductors of electricity.






Learn about electricity in the home.






An interactive E-learning site to help you learn about electricity and how it is used in everyday appliances through electrical circuits.




Learn lots about electricity and circuits here!





Make a variety of circuits to light a bulb, make the buzzer sound and make the motor work.




Play this excellent game. I loved it! Join the spy team and learn lots at the same time







Build and test your own electrical circuit





How a circuit works.





The Blobz Guide to Electrical Circuits.