阅读理解-单选/选择3题 0.65 引用1 组卷22
| Make your own rainbow (彩虹) Learn how to make a rainbow with this fun science experiment (实验) for kids. Use just a few simple everyday things, and you can find out how rainbows work while enjoying a hands-on activity that’s perfect for kids. The experiment will help bring the exciting world of science to life. | |
What you’ll need ●A glass of water (about three quarters full)●White paper ●A sunny day Instructions ●Take the glass of water and paper to a part of the room with sunlight (better near a window).●Hold the glass of water above the paper and watch as sunlight passes through the glass of water. The sunlight is refracted (折射) and forms a rainbow of colors on your piece of paper. ●Try holding the glass of water at different heights and angles to see what may happen. | What’s happening? ●While you usually see a rainbow in the sky, it can also appear in other situations (情况). You may have seen a rainbow in a water fountain (喷泉) or in the middle of a waterfall and you can even make your own in this experiment.●Rainbows form in the sky when sunlight is refracted as it passes through raindrops: it acts in the same way when it passes through a glass of water. The sunlight is refracted, so we can see colors like red, orange, yellow, green, blue, indigo and violet. | |
| A．Start the experiment at late night. |
| B．Hold the glass of water at the same height. |
| C．Put the paper above the glass of water. |
| D．Put the paper under the glass of water. |
| A．two | B．three | C．four | D．five |
| A．You need a full glass of water in this experiment. |
| B．It’s better to do the experiment near a window. |
| C．If you do the experiment successfully, we can see 6 colors. |
| D．You need a piece of black paper to do the experiment. |
23-24八年级下·山东泰安·期中
