Thursday, May 13, 2010

I have results !





so... basically i did the experiment, which actually didn't take as long as i predicted yay !!
absolutely EVERYONE had a lower pulse rate when they consumed Gatorade then exercised than when they had consumed water and exercised
most people had a 15% decrease in pulse rate

Monday, May 10, 2010

I give you GATORADE!


Just thought I'd like to show you my Gatorade ..or the bottles that are remaining at least

Tuesday, May 4, 2010

Materials!!

So..
the equipment I need:

- stopwatch/ timer
- a group of yr 10's (I'm thinking around 15 people?)
- 30 pack of cups
- roughly 4L of Gatorade (3.75L to be exact)
- roughly 4L of water
- step up bench

The location will be in a park or somewhere where it is possible to run freely in


And...
I must ask Ms Zhang about the permission notes still :O

Monday, May 3, 2010

New and Improved Method ...sort of

The Effect of Gatorade Vs. Water on Year 10's Pulse Rates while Exercising

no. of yr 10's: 30 [at least]

Method:
(make sure parental permission is obtained in writing for all yr 10s)
1. Pour 250mL of Gatorade into each paper cup
2. Have each student drink each 250mL cup of Gatorade
3. Wait approximately 30 minutes
4. Take resting pulse rates of each person at the carotid artery on the neck and record results
5. Have each person do 8inch step ups for 4 minutes
6. Wait 30 seconds
7. Take pulse rate and record
8. Work out the % increase or decrease of the resting pulse rate with the new pulse rate, record
9. Repeat steps 1-8, this time with different exercises- running on the spot and sit ups
10. Repeat steps 1-9, this time with water, not Gatorade on a different day

things to look at:
- % change of pulse rate
- whether the pulse rate has decreased or increased
- comparing the results of different people
- which one is more effective to drink while exercising?

Saturday, May 1, 2010

To Do List

Bought the Gatorade!

To Do:
- recruit people for my experiment :D
- ask Ms Zhang about the permission notes..

Sunday, April 25, 2010

Some background Info..

About the Pulse rate:

so the pulse rate that I'm going to use is the carotid pulse rate which is the pulse on your neck. The pulse rate is the same rate as your heart is beating and is often measured to obtain a quick evaluation of a person's health. The pulse should be regular, disregarding the person's age. It is caused by the stretching of arteries.

The average pulse rate of a woman is around 75- 80 beats per minute and the average pulse rate of a man would be around 70 - 75 beats per minute.

Water vs. Gatorade:

Water (H2O) is very important for our health simply because we need it in our bodies as well as to stay hydrated. Especially while doing exercise, we need water otherwise we would become dehydrated.

Gatorade is a popular sports drink which contains dilute salts and electrolytes. These ingredients replace the salts that we sweat away when exercising, which is one of the main reasons why people tend to drink Gatorade before exercising. Not only is there salt, but there is also sugar which provides quick energy during exercise.

Wednesday, March 31, 2010

Wanting to change experiment

I want to change my experiment to something completely different since my toilet paper absorbency experiment isn't suitable
I'm think about doing:

The effect of Gatorade Vs. Water on year 10's Pulse Rates while Exercising
The Independent Variables include:
- the age of the yr 10's : 15 or 16 year olds
- the method and amount of time the pulse is taken for
- amount of time exercising and resting
- types of exercises

The Dependent Variables include:
- whether or not Gatorade was consumed prior to exercise

Method:
(make sure parental permission is obtained in writing for all yr 10s)
1. Pour 250mL of Gatorade into each paper cup
2. Have each student drink each 250mL cup of Gatorade
3. Wait approximately 30 minutes
4. Take resting pulse rates of each person at the carotid artery on the neck and record results
5. Have each person do 8inch step ups for 4 minutes
6. Take pulse rate and record
7. Repeat steps 1-6, this time with different exercises- running on the spot and sit ups
8. Repeat steps 1-7, this time with water, not Gatorade on a different day

Wednesday, March 10, 2010

Which Brand Of Toilet Paper Is Most Absorbent?

Variables to consider:

Dependent Variable:
The amount of water put in each beaker
Independent variable:
The amount of toilet paper used
Controlled Variable:
The amount of time the toilet paper is left in the container

Equipment:
4 different brands of toilet paper, 4 containers, water, measuring cup, tweezers

Hypothesis:

The more expensive brand of toilet paper will absorb more water than the cheap brand of toilet paper in a short amount of time

Aim:
To determine whether the expensive brand of toilet paper or the cheap brand of toilet paper absorbs the most water in a short amount of time

One method that can be used:

1. Put all the equipment listed on a table
2. Pour 20mL of water into each container
3. Tear off one square piece of toilet paper, making sure each has the same area
4. Put each square into a separate beaker at the same time
5. Record which toilet paper brand was put into which container
6. Leave toilet paper in for one minute
7. Use tweezers to pull out each toilet paper at one minute
8. Measure and record how much water is left in each beaker with a measuring cup
9. Repeat steps 3-8 three more times, this time using 50mL of water, 70mL of water and 90mL of water

IDEAAAS

things I'm planning to research and investigate in:

1. which toilet brand is best for absorbing the most water
- planning to get multiple brands of toilet paper, then putting them into the same amounts of water. I will then take the toilet paper out and see how much water is left. The one with the least amount of water left would then obviously be the toilet paper that absorbs the most water.

2. which apple browns faster

3. what colour candle burns faster

Monday, February 8, 2010