Hallo!

It's time for the 2nd contest of the year. Guess the answer to this riddle!

I follow you everywhere yet you can't catch me.
Turn off the light and you can't see me.
I can make you look fat or thin,
it all depends on how you cast me.

What am I?

To answer the riddle, click on 'comments' and type your answer in the box. At select profile, choose 'anonymous'. Remember to type your name and class with your answer and click on 'post comment' to submit your answer. Deadline is the 26th September!

Lightning Strike Video

Lightning is also a source of light. What kind of energy produces lightning?

Check out the video below, but do take note that it is very dangerous to expose yourself to lightning during a storm. (Notice that the people taking the video moved away very quickly at the end.)

VoiceThread

3 states of water simulations

Click to Run

Riddle Unlock!

I cannot be seen yet I am everywhere
I do not have wings yet I travel to the highest mountain.
I huddle to my brothers and sisters when I get cold,
I move away as we get warm.

What am I?

The answer is Air / Water Vapour / Cloud

Congratulations to Hanzalah of 4.7 and Siti Ammira of 4.5! You have won yourselves a box of Magic trick!

Riddle me thee!

Here's our first contest of the year. Guess the answer to the riddle with an explanation of your answer. The best 10 answers will win a mysterious gift! Contest starts 31st March till 13th April.

To answer the riddle, click on 'comments' and type your answer in the box. At select profile, choose 'anonymous'. Remember to type your name and class with your answer and click on 'post comment' to submit your answer.


I cannot be seen yet I am everywhere
I do not have wings yet I travel to the highest mountain.
I huddle to my brothers and sisters when I get cold,
I move away as we get warm.

What am I?

Tranport Systems in Plants

Hallo,

Here are a couple of great videos on plant systems.