Elementary science club is meeting on Thursdays after school, in the Science lab M311.

Every week we make a hypothesis, and test it by doing an experiment, gathering data and evaluating our data.

Week 1: We looked at a chemical reaction that produces a gas, and tried to find out how to produce the most gas bubbles.

Some videos of our conclusions IMG_0200 IMG_0202 IMG_0203

Week 2: We looked at cars travelling down a ramp, and investigated what factors make the car travel faster or farther.

Some videos of our conclusions : IMG_0231 IMG_0232 IMG_0235

Week 3: We investigated on ourselves! We learned to measure our heart rate, and to find out when our hearts beat faster and slower.

In our club we found that heart rates were slower if we were lying down. We were surprised that they were slightly slower on average standing up than sitting down. The average heart rate more than doubled after we jumped around for a few minutes!!

(We were jumping too fast for photos)

Week 4:

Reaction Times! How fast are your reflexes?

Students make a hypothesis about whether they are faster at reacting to a visual or an audio cue. Everyone collects data using rulers and meter sticks. We made a group data table to see if the results are consistent amongst each group. People don’t all behave the same!

Want to see some photos?

Week 5:

Did everyone collect data about their skiing speed on ski break? I hope so!

We built and tested small catapults in club today! How can you make the weapon (Pompoms) hit a target?

Week 6:

Testing for Acid and Base in common household materials.

We used pH paper, and pH indicator liquid to find out if drinks, foods and soaps were acidic (red, and low pH) or basic (blue, and hi pH).

Then we used some Purple Cabbage water (chop and boil a purple cabbage, then collect the water). We found it changes colour in acid and base too, so we used this as an indicator.

Some acids and bases produce a gas (bubbles) when you mix them. This was fun.

Week 7:

Chromatography. (Cancelled due to Secondary parent teacher conferences – sorry!)

If you want to try at home, look at these instructions.

http://www.exploratorium.edu/science_explorer/black_magic.html

Week 8: (MARCH 17th)

LAST WEEK!

Parachutes!

What size, shape, or type of parachute works best at slowing down a toy parachuter? How can we make a fair test?