chem notes

Steps of the Scientific Method

This link includes information on the steps of the scientific method

SCIENTIFIC METHOD

Write a summary of the steps

Scientific Method

Scientific Method in a nutshell

1.  First make an observation, a measurement
2.  Next make a theory about that observation.  Your theory is called
a HYPOTHESIS
3.  TEST YOUR HYPOTHESIS by designing an experiment.  The experiment must
be fair. That is, you must be willing to test whether your hypothesis is wrong.
4.  Design your experiment so that you are testing a big enough SAMPLE SIZE.
Control the other factors which may influence the outcome of the experiment.
5.  Make a prediction:
a.  if my hypothesis is correct, then the outcome will be....
b.  if my hypothesis is incorrect, then the outcome will be...
6.  Conduct the experiment and make observations
7.  Make a conclusion.
8.  other people try and replicate your experiment to see if they get the same results.

Homework:  Due next period

Study for the safety test, including all the symbols
Redesign my experiment and make it a more valid experiment.  Write a one page redesign of the experiment.

A few science safety rules. We'll go over more in class

1.    

Follow teacher instructions

a.     If you wish to change instructions, check with teacher

b.     If you break anything or get hurt, report it REPORT ACCIDENTS

2.     No horseplay, fooling around

3.     Keep yourself safe

a.     Hair tied back, no loose clothing, shoes are closed

b.     If chemicals get on skin, use water

c.     Use eyewash if anything gets in eyes

d.     Wear goggles if needed

e.  If you wear contacts, inform the teacher

4.      Keep your area safe

a.     your work area is neat and organized

b.     you have your lab instructions

c.     aware of fire safety and chemical safety

5.     Keep the classroom safe

a.     Carry materials in a safe way

b.     Aware of fire safety procedure

c.     Don’t remove any experiments from the classroom

d.     Don’t do experiments without first checking with teacher.

6.      Hot and cold and chemical safety

a.     never assume the temperature of something.  Take precautions

b.     hot beaker and cold beaker look identical

c.     always point a test tube away from everyone

d.     when smelling a chemical, waft.


You will create safety rules by reading and summarizing the safety procedures in your text.  Then you will take the Finn Laboratory Saftey Test

The rules can be under the following categories:
HIGHEST PRIORITIES:

THESE RULES CAN BE SUMMED UP LIKE THIS
Talk to the instructor                     

KEEP ORGANIZED AND SAFE
Keep the classroom safe
Keeping your work area safe
Keep safe with your colleagues
Keep yourself safe
KNOW THE SYMBOLS
Know the correct symbols, WHIMIS symbols


COMMUNICATE AND REACT TO AN EMERGENCY
       Emergency procedures for fire, toxins, spills, and evacuation   

Science 8 lesson 1 Measurement

Today we played a name game to teach you how our brain learns by using patterns and association.
We also had a task of measuring the volume of the room using metre sticks.

In your write up, you must have

Title: Measurement
Name
Block

Drawing of the room volume
1.  What were the steps you used to measure the volume of the room.  Write these steps in full sentences.
2.   What errors occurred in your measurement? Describe your sources of error
3.   Give me your calculations.  Your findings.  The equation is Volume = L x W x H.
The answer is in metres cubed.
4.  Record the results of the whole class

Try these electricity questions and check your answers

I have recently sent you the results of the last in class open book quiz.  please review your answers and see where you may need extra help.  I'm willing to assist. and try out these math questions as they relate to ohms law.  There are answers to these fyi
Sample test from the bbc
here are some practice questions with explanation

There is a great series of videos on series and parallel circuits from khan Academy. he explains it systematically.

here, he talks about calculating total voltage by adding the voltage drops
https://www.khanacademy.org/science/physics/circuits-topic/circuits-resistance/v/circuits-part-2

virtual lab activities try these

Try these virtual labs:

Predicting current

Simple circuit

Parallel circuits

Series circuits

Ohm's Law

Now fill in this open book quiz:

QUIZ