instructions 1) go to work station one, and pick up a copy of the quiz study guide. 2) write your...

Instructions

1) Go to work station one, and pick up a copy of the quiz study guide. 2) Write your first and last name in the top/right corner.3) Beneath your name, write today's date4) Beneath the date, write the class period.5) Wait silently for additional instructions.

BellWork

SPI 0807.Inq.1 (Variables and Controls)

Aug 20, 2014Press the Right Arrow Button to Advance through the Presentation!

SPI 0807.Inq.1(Variables and Controls)

Today's Plan

Plan

1) Explain/Discuss bellwork2) Emphasize objective(s)3) Ask about birthdays4) Continue collecting forms from my homeroom students5) View and discuss notes about control experiment6) Complete study guide in class7) (Time permitting) dependent variable review activity at work stations

WRITE THIS IN YOUR AGENDA!Homework: Study for quiz

Science

What Are Control Experiments?

An experiment to verify the results of another experiment using the same conditions except for one factor or variable

An experiment separated from the main experiment where the independent variable being tested cannot influence the results.

Simply remove the independent variable entirely or replace it with a neutral independent variable.

Notes SPI 0807.Inq.1 (Variables and Controls)

Also called control groups

Press the Right Arrow Button to Advance through the Presentation!

Example: A student conducts an experiment to determine whichtype of ballpoint pen will last the longest before running out of ink. Experimental Group Uses 3 types of ink ballpoint pens in a series of experiments

(Blue ink pen, Black ink pen, red ink pen)

SPI 0807.Inq.1Variables and ControlsNotes

The independent variable is…the color of the ink in the pens

A dependent variable is…

Describe a control experiment for this example:

How long the ink lasts

HINT: Just eliminate the effect of the independent variable

Control Experiment: Instead of a ballpoint pen, repeat theexperiment using some kind of non-ballpoint pen (like a Sharpie for example)

Experimental group All the details of the series of experiments using the 3types of ballpoint pens

Control group All the details of the 3 non-ballpoint pens


Example: A scientist is conducting an experiment to test how sunlight affects plant growth. She places one corn plant 1 meter away from a sunlamp. She places one corn plant 2 meters away from a sunlamp. She places one corn plant 3 meters away from a sunlamp.


The independent variable is…the distance from the sunlamp



the plant growth


Control Experiment: Place a corn plant in a dark room with no sunlight and observe what happens.

Experimental group All the details of the series of experiments with the

sunlamp and the three corn plants

Control group All the details of the experiment in the dark room witha corn plant and no sunlight


Example: A student conducted an experiment to determine if energy drinks can help you run faster.

Here is the experimental group1st trial: Day 01-Run 30m after drinking Monster energy drink2nd trial: Day 02-Run 30m after drinking Red Bull energy drink3rd trial: Day 03-Run 30m after drinking Rock Star energy drink


The independent variable is…the type of energy drink



How fast they run


Control Experiment: Have them run without consuming anyenergy drink. You could give them a glass of water instead, orgive them nothing at all.

Experimental group All the details of the series of experiments with the

runners and the 3 different types of energy drinks

Control group All the details of the experiments with the runners without

any energy drinks


instructions 1) go to work station one, and pick up a copy of the quiz study guide. 2) write your...

Documents