Graphing data

We talked in class today how to make a "good" graph. To practice this you investigated the length of a pendulum and the number of swings it takes in 15 seconds.

HW! Graph the average swings for each length you did. Also write a summary of your graph- what does your graph tell you?


Quiz Tuesday on safety and science skills!

Understanding variables

A good science investigation will involve variables and controls. Without variables you really have nothing to compare your data to. However, it is important to focus on one thing (the manipulated variable) and keep all the other variables constant. Doing so will give your data validity!

In class we practiced how to choose the MV and RV by placing drops of water on a penny.

Homework: Complete questions from Drops on a Penny lab- Questions should be done on page 8 only. If you need more more add a page!

1. Compare your results with what you thought would happen before you completed the lab.
2. Looking at your data, did the variable you choose make a difference? Why or Why not?
3. Describe any variables that may have affected your results.

Making observations

Observations and inferences are a lot like facts and opinions. To practice these very important skills, we looked at 3 slides and inferred what happened to 2 different animals. Some of you had some interesting inferences!

Remember~ Observations are facts made using the 5 senses. Inferences are conclusions that you think happened based on your observation. It is important to not make opinions when making observations and even inferences.

Tomorrow we will get more practice in observations with a visit from Mr. Potatohead!