A Scientific Experiment and a Contingency Plan
Do you know what makes a rainbow happen?
It is due to an interaction between water and light.
What do you need to make an indoor rainbow?
Materials that you already have at home:
- A sheet of white paper.
- Sunlight
- A glass of water
First, take the glass of water and paper to a room with sunlight. Then, hold the glass of water above the paper and watch as sunlight passes through the glass of water, refracts and forms a rainbow of colors on your sheet of paper. Finally, try to keep the glass of water at different heights and angles to see if it has a different effect.
What happens while doing the experiment?
Rainbows can happen in water fountains or in the mist of waterfalls just like the rainbow you have produced with the reflection of sunlight through the water on white paper.
So does it happen when it rains. Sunlight refracts as it passes through raindrops, it acts in the same way when it goes through our glass of water. When the sunlight refracts, it splits into the colours red, orange, yellow, green, blue, indigo and violet.
When you write a report about the results of a scientific experiment, you have to demonstrate step by step how you have done it.
First, set the objective of the experiment .In our example the objective is how to make an indoor rainbow.
Second, list the materials you need to conduct the experiment.
Thirdly, describe the experiment stages by giving instructions. It is better to put the verbs in the imperative form and use sequencers for better organization:
“First, take the glass of water in a sunny room. Then, hold the paper above the glass…”
Fourthly, give details about the results of the experiment using the observations you must write during the stages and the photos you must take before and after the experiment. Use type 0 of the conditional as the results are true at any time.
Example: When sunlight passes through rain drops, it splits into colours.
Last but not least, write a short conclusion in which you state that you have achieved the goals of the experiment according to scientific rules or hypotheses.
- What is a contingency plan?
A contingency plan is something that may happen: an event that might occur in the future, especially a problem, emergency, or expense that might arise unexpectedly and therefore you must be prepared for.
You have a letter to write to your friend telling him or her about your contingency plan in case you are not able to have a place in the university of your choice. Your friend is also anxious about his university studies. So try to make your plan lively and funny.
Date
Greeting: Dear………,
Thank you for……………
Positive results: If I find a place ……
Negative results: If I am turned down……
Final paragraph: Anyway, I will not worry so much………
Closing: yours,/ cheers,
- إختبارات
- 10
- الأجوبة الصحيحة
- False
- الأجوبة الخاطئة
- False
- مجموع النقاط
- False
