First Lab 8/26/11

Homework: Finish any unanswered questions for part one of the lab.

1. First, we got our numbers for our personal rolls of tape for the year.

2. The second thing that we did Friday was get our journals ready for the first unit.

- Taped in Unit one schedule, Objectives, and the Alka-Seltzer lab

3. Next, we took a short amount of notes which were on variables:

-Independent: What you change (temp, food, light)

-Dependent- What you measure (time, distance, behavior)

-Control- What stays the same (type, number, location)

-Qualitative Data- Observations that are generally subjected (moth moves into light)

-Quantitative Data- Observations that are objective (time)

4. Next, we moved on to getting our blogger accounts set up.

- Passwords, display names, etc.

- Accept invitation to blog from Mr. Paek on your student email

- Log in: id#@glenbrook225.org, with your password to sign into the computers

5. Lastly, we began the first part of the Alka-Seltzer lab.

- Filled film canisters with water, put an Alka-Seltzer in, closed the lid, faced down, and observed.

-Alka-Seltzer creates bubbles which take up the left over room in the canister

-Causes a build up in pressure making the canister act as a rocket, shooting towards the ceiling when the cap bursts off.