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北京版六年级下册《UNIT FOUR WHAT’S THE WEATHER LIKE Lesson 16》优秀教学课件
indigo
violet
red
orange
yellow
green
blue
Light
Bounce(反射)
Be absorbed(被吸收)
White light
Darkness(black)
Q: How does the light turn to rainbow?
(theory原理)
white light
different colours
scatter(散射)
method
Water glass method
Mirror method
CD method
a glass of water, sunlight, a white paper
a mirror, a glass of water, a dark room , white wall, a flashlight
the CD , a table, sunlight
need