Name: Mandisa
Surname: Vilakazi
Grade: 9L
Teacher: Ms Mhlongo
Science Investigation
Question: Which soda water is the most harmful towards human teeth (for this investigation I will use egg shells because they have more or less everything in common with a human tooth)?
Hypothesis: Coca Cola is the most harmful towards human teeth, and I say this because it contains more sugar than Coca Cola zero, Pepsi, Sprite and Distilled water, making it more harmful or corrosive to human teeth because this means that it produces more cavities, and we know that the sugars turn into acid and acid is corrosive that’s why it spoils and harms our teeth.
Variables:
Independent: the different types of soda drinks
Dependent: the decaying of the egg shell (which …show more content…
Allocate one cup for each drink - one for Coca Cola, one for Coca Cola zero, one for Pepsi, one for Sprite, and lastly for the distilled water.
Step 2: Pour each liquid into the selected cup and drop in an egg for each labelled cup.
Step 3: Detect what happens to each egg shell each day, (Take note and record these observations in your notebook). Pick the egg out of the cup to look get a closer look but make sure you return it back inside after observing, (Now, don’t forget to compare these clarifications to that of the egg in the distilled water).
Step 4: Carry on doing this for a week and evaluate the trend if there is any (If you want to, you can make it a week and five days because the clearer the results will be if you make it stay longer).
Table of results:
Table of results showing the different soda drinks and the effects the have on the human teeth (in this case egg
Surname: Vilakazi
Grade: 9L
Teacher: Ms Mhlongo
Science Investigation
Question: Which soda water is the most harmful towards human teeth (for this investigation I will use egg shells because they have more or less everything in common with a human tooth)?
Hypothesis: Coca Cola is the most harmful towards human teeth, and I say this because it contains more sugar than Coca Cola zero, Pepsi, Sprite and Distilled water, making it more harmful or corrosive to human teeth because this means that it produces more cavities, and we know that the sugars turn into acid and acid is corrosive that’s why it spoils and harms our teeth.
Variables:
Independent: the different types of soda drinks
Dependent: the decaying of the egg shell (which …show more content…
Allocate one cup for each drink - one for Coca Cola, one for Coca Cola zero, one for Pepsi, one for Sprite, and lastly for the distilled water.
Step 2: Pour each liquid into the selected cup and drop in an egg for each labelled cup.
Step 3: Detect what happens to each egg shell each day, (Take note and record these observations in your notebook). Pick the egg out of the cup to look get a closer look but make sure you return it back inside after observing, (Now, don’t forget to compare these clarifications to that of the egg in the distilled water).
Step 4: Carry on doing this for a week and evaluate the trend if there is any (If you want to, you can make it a week and five days because the clearer the results will be if you make it stay longer).
Table of results:
Table of results showing the different soda drinks and the effects the have on the human teeth (in this case egg