light up science （科学）3b unit 4 making a lighthou

1、整理课件See a light,Very bright.What can it be?Two people on an island Lets go and see!整理课件Part 1 Make Itcircuit (电路电路)lighthouse (灯塔灯塔)tower (塔身塔身) 整理课件We can make a lighthouse.How can we tell others about our island?整理课件Make a tower.整理课件Cut off the bottom of the bottle.整理课件Wrap paper round the bottle.

2、整理课件Draw on the paper. Make it look like a lighthouse.整理课件Add a circuit.整理课件Tape the bulb on the top of the tower.Connect the bulb to a battery and a switch. Add a cover.整理课件Draw a picture of your tower with the circuit.整理课件Add the lighthouse to an island.Make an island for your lighthouse.整理课件Part

3、2 Test ItNow test your lighthouse in a dark room.Can you see the light?Yes, I can.整理课件Can your lighthouse do these things? Colour the stars.Can it stand up on its own?Can it give out light?Can you turn it off?整理课件Part 3 Think AgainWhat was easy to make? What was difficult?整理课件How can you make your l

4、ighthouse better? Draw a picture.整理课件整理课件Write the numbers.This is a _. It has a _ and a light. I can use a switch to turn the _ on and off.231整理课件A lighthouse warns ships about danger. People can see the light from far away. Sometimes there is fog, so people cannot see the light. Then, the lighthouse uses something else to warn ships. Do you know what?Possible answer:The lighthous