Density
The variables
Trends and General Relationships
Graphs
Vocabulary
100

A graduated cylinder is used to measure the volume of a block and after displacement the volume is 15 ml.  The block has a mass of 105 grams and a density of _______________.

7 g/ml

100

Andy wants to know which hot dog brand is the best from Nathan's, Ball Park, and Oscar Meyers.  So during the next BBQ he cooks all 3 hot dog brands and serves them to his guests and asked them which one they liked the best.  The dependent variable is _________________.

peoples opinion (liked the best)

100

The following trend in a line graph can be described as "waves in an ocean"

Cyclic

100

This type of graph is used when both sets of data are quantitative.

Line graph

100

The following is an example of this vocabulary word:

The pumpkin pie smelled like cinnamon 

Observation

200

A cube of aluminum has a density of 2.7 g/ml; if the volume of a cube is 8 ml, then the mass is ___________.

21.6 grams

200

Four groups of rats are weighed and then fed identical diets except for the amount of vitamin A they receive. Each group gets a different amount of vitamin A. After 3 weeks on this diet, the rats are weighed again to see if there has been a change.  

What is the independent variable?

The amount of vitamin A

200

Complete the following general relation ship:

As the time of day increases from 8:00 pm, the amount of stars seen in the sky ______________.

increases

200

This type of graph should be used in the following situation:

Yashira finds out high levels of toulene in nail polish can cause cancer, so she wants to know how much in percent of this ingredient is in her nail polish to all other ingredients.

circle graph

200

In science this are the best explanations scientist have to offer

Theory
300

A jeweler receives a 5 carat diamond.  Its a common fact that 5 carat weighs 1.0 grams.  The jeweler feels that the stone is not a diamond, he knows the density of a diamond in 3.5 g/ml.  If the diamond is real it should have a volume of _______________.

0.29 ml

300

If different plots of land are used to grow potatoes, then the soil with the most fertilizer will grow the best.

What is the controlled variable?

Potatoes

300

(Fill-in the Blank)

The data line trend "non-related: constant" describes the following general relationship:

As X increase, Y _________.

Remains the same

300

Paul wants to know if the mass of a car has an effect on its speed, what kind of graph would he use to graph this from collected masses and speeds.

Line graph (collected mass are numbers and collect speeds are also numbers)

300

This can be described as "how closely packed the particles of mater are in an object."

Density

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