Honors Sci Test Study Cards

What are the 3 main parts of a graph?

Title, y-axis, x-axis

What is an independent variable?

A variable that is changed on purpose

What is a dependent variable?

A variable that is observed/measured, and it depends on the independent variable.

What memory trick helps with knowing what variable goes on each axis?

Dry-Mix.

How does Dry-Mix help?

D in dry stands for the dependent variable being on the y axis, then I in mix stands for independent.

Can there be more than one dependent variables?

Yes!

What are the main questions to ask when gathering/reading data?

What is the scale of this data and what do the y/x axis tell me?

What must you always include in an answer?

A unit

What slope has a direct relationship? Why?

Positive. Because when one variable increases so does the other.

What slope has a indirect relationship? Why?

Negitive slope. Because when one variable increases, the other decreases.

Can a constant slope have some change?

Yes, only a little.

What two words are indicators that you should add data sets together?

Or and And

How many answers should you have when “or” or “and” is in the question?

No more than 1

What are the 5 key terms that tell you to comined data?

“less than”

“more than”

“at least”

“fewer than”

“in total”

What does extrapolation mean?

Using background knowledge and trends in the graph to predict past or future data.

How do you find past data using extrapolation/

Look at trends in the beginning of the data set then infer.

How do you find future data using extrapolation?

Look at the trends at the end of the data set and infer?

Make sure that your infrences make ______________

sense

Is it okay to occasionally use outside data?

Yes

What is proportional reasoning?

A fancy term to say “the ability to compare terms”

What is a common way of solving proportional reasoning?

Cross multiplication.

In the equation “5x+3y=8” what are the coefficiants?

5 and 3

In the equation “5x+3y=8” what are the variables?

x and y

In the equation “5x+3y=8” what is the constant?

8

What is the Pythagorean theorem?

a^2 + b^2 = c^2

What is scientific notation?

A way to write long numbers shorthand or small number more manageably.

What is appropriate attire for a science lab?

goggles/glasses

proper clothing

hair up

closed toed shoes

protective gloves

What are the 3 most likely hazards that occur?

What is the acronym for how to use a fire extinguisher?

P (pull) A (aim) S (squeeze) S (sweep)

Where do we go for a tornado drill?

Downstairs into the art hallway?

Where do we go for a fire drill?

Move out of the class down the nearest stairwell, go across back parking lot and by the victory bell.

What does MSDS stand for?

Material Safety Data Sheet

What should we assume about all liquids?

It’s flammable

What 3 things that all good measurements have?

Certain digits

Estimated digit

The unit

What is a certain digit?

All digits that come up on the scale

What is an estimated digit?

ONE extra digit that shows if the measurement is at the line or slightly above

What is the estimated digit for something that is right on the line?

0

What is the estimated digit for something that is right above the line?

5