Our Gliders

Today, we made our own aeroplanes, then made another type of gilder to compare.

Experimental:

1) Cut the index card or stiff paper into 3 separate pieces that measure 2.5 cm by 13 cm.

2) Take two of the pieces of paper and tape them together into a hoop.

3) Use the last strip of paper to make a smaller loop, overlapping the edges a bit like before.

4) Tape the paper loops to the ends of the straw as shown below. The straw must be lined up on the inside of the loops.

5) Now hold the straw in the middle with the hoops on top and throw in the air similar to how you might throw a dart angled slightly up. With some practice you can get it to go further than many paper airplanes.

Think:

1. Does the placement of the hoops on the straw affect its flight distance?

2. Does the length of straw affect the flight? (You can cut the straws or attach straws together to test this)

3. Do more hoops help the hoop glider to fly better?

4. Do the hoops have to be lined up in order for the plane to fly well?

Deadline: 10 p.m. 3rd March 2013 Sunday

Was your aeroplane better than the experimental glider?

Garbage Enzymes

After the CNY break, we are using our leftover Fruit peels to make garbage enzymes!

Exciting!


Garbage enzymes!












What are garbage enzymes? What are the benefits of using them?

Enjoy the process of collecting and making them =)

Think about the Science behind it.
Post your comments & questions here!

Cheers,
SCT

We made our own Slime!

Hi Everyone,

Please fill in your findings and questions in the Form.

Share with us your questions and findings next week same time next week.

Regards,
SCT

Welcome back to a New Year !!!!

Our Team buiding Activity

Protecting our EGG!
In our teams, we are tasked to protect the precious fragile egg.

Materials provided
some drinking straws
a roll of tape
a piece of cardboard
a stack of newspapers
two pairs of scissors

We are building a safety home to protect and hold our egg!
Success?


We made our own Slime!

The ingredients
What are the ingredients we used?


Post your comments/ reflections!
Tell us these:
1) 3 things that you have learned from the lesson/ activity
2) 2 things I want to share with my friends
3) 1 thing I like about the lesson/ activity

Share!

Mrs R.A.L

Sound

                                                 
Sound is a wave that travels in the air. Is that it? No. There are many interesting facts about sound. Like: Did you know that the speed of sound is faster in solids is produced by rapidly heated air surrounding lightning which expands faster than that in liquids or gases? The speed of sound also is affected by temperature. Dogs can hear at a higher frequency than humans, allowing them to hear sounds that we cannot.  The sound of thunder an the speed of sound. The loud noise you create by cracking a whip occurs because the tip is moving so fast it breaks the speed of sound!

So, what did we learn today?

1. Sound can travel through solids.
2. How to use the '2 cans and a string' device.
3. Sound travels in waves.
4. Vibrations can be felt along the string and the cups when we talk.
5. When we paste the tape on the cup, we cannot hear the sounds clearly.
6. If we put 2 different strings together, we cannot hear it.
7. Sound is a type of energy.
8. With an extremely thin string, the receiver is unable to hear the message clearly and vice-versa.
9. With a long string (abt 40 metres), the message is also unclear to the receiver and vice-versa.

What are the best conditions for talking using cups and string?

1. Straight string
2. Short string
3. Loud voice
4. Must hold the cup
5. Tape the knot to the cup.

How does this work?

When one person talks into his/her cup, the bottom of the cup vibrates back and forth with the sound waves. The vibrations travel through the string by pulling the string back and forth. Therefore, the bottom of the second cup should start to vibrate back and forth just like the bottom of the first cup is vibrating, producing sound waves. The second person can hear the sound waves and can therefore hear what the first person says.

Our Design of the Eco-garden

Hi  everyone, these are some pictures of us drawing our design of the Eco-garden.

Marc and Adli

Min Yi drawing.

Welcome to Science Club!

Hello everyone! Welcome to Science Club!

Our CCA is held on Wednesdays from 3.30 to 5.30.
 We are having our Punggol Park Trail on 15th February. Only certain pupils are needed to attend. Please bring your water bottle, script, cap/umbrella and poncho, and a prepared mind. Please do not be absent.