BIO 123 Exam 1 Essay Questions And
Answers
1. Create your own scientific experiment -- this can be something you have done in the past or
a new one that you create with your imagination. If you create it from scratch, be sure it is
realistic!Using your scientific experiment, apply it to the 4 steps of the scientific method. You
will need to identify the name of each step and then describe your experiment as it applies to
each of those steps. Be sure to identify the variables!
▪ Problem: Missing wallet
▪ Data: I went to the market to buy some groceries. When I got home I noticed that
my wallet was gone.
▪ Hypothesis: My first hypothesis was: I lost it in the market while I was buying groceries.
The second hypothesis was: My wallet could have fallen out of my purse in my car. The
third was: I had accidentally left my wallet in the grocery cart.
▪ Experiments: The first obvious place to start looking would be my car, so I searched
high and low throughout my car for my missing wallet, but no luck. Next, I went back to
the grocery store, checked the grocery carts, still no wallet. I then went inside the grocery
store to ask the cashier if I had left my wallet, and thank goodness she noticed I had left it
behind and she put it in a safe place!
▪ Conclusion: I lost my wallet in the grocery store and the cashier found it, put it aside for
me when she knew I would be back for it, and she gave it back to me.
2. Natural phenomena often require an explanation. Based on the figure here, and your
knowledge regarding ions, explain why the oceans don't freeze.
Answers
1. Create your own scientific experiment -- this can be something you have done in the past or
a new one that you create with your imagination. If you create it from scratch, be sure it is
realistic!Using your scientific experiment, apply it to the 4 steps of the scientific method. You
will need to identify the name of each step and then describe your experiment as it applies to
each of those steps. Be sure to identify the variables!
▪ Problem: Missing wallet
▪ Data: I went to the market to buy some groceries. When I got home I noticed that
my wallet was gone.
▪ Hypothesis: My first hypothesis was: I lost it in the market while I was buying groceries.
The second hypothesis was: My wallet could have fallen out of my purse in my car. The
third was: I had accidentally left my wallet in the grocery cart.
▪ Experiments: The first obvious place to start looking would be my car, so I searched
high and low throughout my car for my missing wallet, but no luck. Next, I went back to
the grocery store, checked the grocery carts, still no wallet. I then went inside the grocery
store to ask the cashier if I had left my wallet, and thank goodness she noticed I had left it
behind and she put it in a safe place!
▪ Conclusion: I lost my wallet in the grocery store and the cashier found it, put it aside for
me when she knew I would be back for it, and she gave it back to me.
2. Natural phenomena often require an explanation. Based on the figure here, and your
knowledge regarding ions, explain why the oceans don't freeze.
