Water Clock Experiment

Water Clock Experiment:

Problem:

How much water drips in 15 minutes

Materials:

• Plastic cup
• Beaker/Measuring cup (not to big)
• Pin
• Water

What did we do?

1. We poked a small hole at the bottom of the plastic cup and then we placed the plastic cup in the beaker.
2. Then we poured some water into the plastic cup and we started the 15 minute timer.
3. We waited for 15 minutes.
4. When the timer was done we quickly took the plastic cup and blocked the small hole so that no water could get out. We then tipped out the extra water that was inside the plastic cup and measured the water inside the beaker.
5. Then we repeated it again until we knew for sure our measurements were accurate.

Observation:

1st attempt:

The water was dripping very slowly and it would sometimes stop. We would have to shake and move the cup whenever the water would stop dripping. For the first trial, the results for 15 minutes was 30mls.

2nd Attempt:

The water dripped faster than the first attempt and we squeezed the cup whenever it stopped dripping. We also got a higher result which was 45ml. We didn’t do 30 minutes but we estimated that it should’ve been around 80 ml.

3rd attempt:

We didn’t get to do the third attempt.

Conclusion:

We conclude that our results differ from one another because in our second attempt we loosened the plastic cup . This could be the cause why the water dripped faster than the first attempt.

Script for wind power

Girl: What is Wind Power and why is it important?

Boy:That is a good question! Well, wind power is a power that is harnessed by the wind. Wind power turns wind into useful energy. Wind Power can be harnessed in many ways. Windmills create mechanical energy and Wind Turbines generate electricity. The importance of wind power is that it produces more and more energy and electricity that we can use. Did you know that small wind turbines’ energy is used to charge batteries and it is also used for backup energy for caravans and for ships? Wind Turbines also have 3 large blades.

Girl: That’s very interesting!  but how do wind turbines work and how do they make electricity?

Boy:  Wind Turbines have 3 blades right?

Girl: Yes…

Boy: Yeah. Those 3 blades spin 2 or 3 times. They spin around a rotor. The rotor is connected to a main shaft which makes the Wind Turbine create electricity. Pretty cool right?

Girl: Wow! That is amazing! Thanks for telling me. I learnt so much!

Wind Power

Wind Power by LC1221 on GoAnimate