We did these in the new visual arts class. Enjoy!

Calculating Density Notes

To find the density of a material, you need to know the mass and the volume of the material.
The Formula to find density is:
D = M/V
(Density = Mass ÷ Volume)
Example:
Find the density of a material that has a mass of 34 grams and a volume of 16 ml
Step one: Write out the equation for density
D= M ÷ V
Step two: Plug in known information
D= 34 g ÷ 16 ml
Step three: Calculate
D = 2.125 g/ml

• The density of water is 1 g/ml

o Any material that has a density ABOVE 1 g/ml will sink.
o Any material that has a density BELOW 1g/ml will float.

I. Lab Equipment

a. Digital Balance – used to weigh things digitally (small things accurately)

b. Dropperž – measures one drop at a time

c. Beaker – Holds liquids – usually in ml

d. Erlenmeyer Flask – to mix liquids manually

e. Forceps – to pick up small things

f. Triple Beam Balance – weigh things manually

g. Pipette – measures specific amount of liquid

II. A good Hypothesis

• It is logical
• žIt can be tested
• žCan be an “if-then” statement

III. Scientific Method

1. Make an observation
2. Ask a question
3. Form a hypothesis
4. Conduct an experiment – collect data
5. Write a conclusion

IV. Independent/Dependent Variable

Independent Variable is manipulate variable (I make the changes)

Dependent Variable is the measured outcome (Data is recorded)

V. Converting Metric Units

King Henry Doesn’t Usually Drink Chocolate Milk

K = kilo (1,000)

H = hecto (100)

D = deca (10)

U = Units – meter, liter, gram

D = deci (1/10)

C = centi (1/100)

M – milli (1/1000)

• Write base units under the U
• Put your finger on the starting unit
• Count letters right or left to the units you are converting to
• Move the decimal point that many spaces right or left

CLICK HERE TO DOWNLOAD POWERPOINT ON METRIC CONVERSION

We are going to look again at Independent Variables, Dependent Variables and Control Variables in an experiment. Another teacher made this video using Go! Animate. I think it does well to explain variables, and there is only one misspelled word. Can you find it? It’s okay if you don’t, but the video will be very helpful for our lesson this week and our quiz, so happy viewing, my Jedi Knights of Science!

I spent several days cleaning, organizing and recreating my science classroom.  Students, parents and guardians: I hope you feel some ownership and know how much I want for you this year.  You don’t have to know everything about science.  If you did you wouldn’t need me.  Just find that love for learning, like when you are at a museum or discovering something for the first time.  Welcome!