The Variables
Bad Hypotheses (what is missing)
Graphs
Vocabulary
100

This variable is chosen by the researcher and then is manipulated to get results in the investigation.

Independent Variable

100

The following hypothesis receive 0 points, why?


"Different color yarn balls are given to a cat, blue yarn will be played with the most."

No IF-THEN format

100

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

Line graph

100

The following is an example of which vocabulary word:

The pumpkin pie smelled like cinnamon 

Observation

200

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)

200

The following hypothesis lost a point, why?

If the students in the school gym, then basketball is the most played sport.

what are the students doing in the school gym?  Which out communicating the independent variable, their is no idea what the students are doing?

If different sports are played by the students in the school gym, then basketball is the most played sport.

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 of this ingredient is in her nail polish to all other ingredients.

Circle graph (part to whole; How much of ingredient to entire mixture of nail polish)

200

The following is an example of which vocabulary word: 

Sir Isaac Newton explains how the many different experiments and investigations come to the same conclusion that gravity is associated to mass of the objects.

Theory

300

Picture Question:

What is the independent variable?

Specific Situations

300

The following hypothesis lost a point, why?

If the different colors, then purple will be voted the most.

It doesn't describe the experiment, no constant was used to explain what is being conducted so that purple will get the most votes

300

Picture graph:

What is missing in this graph

Label on the Y-axis, currently don't know what those numbers are describing (votes, views?)

300

The following is an example of which vocabulary word: 

Jim records the following measurements: 10 centimeters, 14 centimeters, and 23 centimeters.

Quantitative

400

Picture Question:

What is the dependent variable? 

Genders (Male and Female)

400

The following hypothesis lost a few points, why?

IV: Cat toys (Yarn or squeaky mouse)

DV: Toy the cat plays with more


"If the toy the cat plays with more from the pet store, then the cat toys are Yarn and squeaky mouse."

Reversed the usage of the IV and DV.  The IV needs to used in the IF statement with the constant and the DV needs to be communicated in the THEN statement.

400

Picture graph:

What is missing in this graph

Title, without a title we have no idea what the experiment is about.   The key tells us the candies that were measure, but for what?

400

The following is an example of which vocabulary word: 

John watches the old man carefully fold each bill differently, he knows people with vision problems fold bills differently to quick tell the different amounts.  Therefore this old man has vision problems. 

Inference

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