Question

Think of observation then form a question and hypothesis. Then, design an experiment you could do to test your hypothesis. Make sure the experimental design is detailed and define all of your variables (the dependent variable, the independent variable, the controlled variable, designing the procedure, level of treatment, replication, the control. )

On a separate sheet of paper, think of an observation you have made and then form a question and hypothesis. Then, design an experiment you could do to test your hypothesis. Make sure the experimental design is detailed and define all of your variables.

Answer 1

Observation: On Tv, you saw a show where a mice was placed inside a labyrinth and he was able to get out easily. Then, you asked yourself if rats are able to scape faster than mice from the same labyrinth.

Question: Can rats solve the labyrinth faster than mice?

Hypothesis: If rats can solve the labyrinth faster, they will take less time than mice in solving the labyrinth.

Experimental design: You will take two labyrinths with the same conformation. You will place each animal (one rat and one mouse) in a labyrinth and then you will record the time that takes to solve the labyrinth. You will repeat the same experiment 3 times and then you will calculate the mean time of each animal.

Dependent variable: Time

Independent variable: The labyrinth and its conformation

Control: This is a comparative experimental design, a control group is not necessary

Control variables: Ventilation, food and water provided at the same amount to both animals prior the experiment

Possible results:

Mean time (minutes) In this case, the rat took around 3 minutes to solve the labyrinth and the mouse took 5 minutes. So, rats are faster than mice in solving the labyrinth. You hypothesis is accepted Mouse Rat