Scientific Investigation

I keep the size of pot, type and size of plant, amount of water, amount of soil, and sunlight all the same.  What variable am I using to ensure good results?

• Independent Variable
• Dependent Variable
• Constants
• Control

In my plant experiment, one plant got fertilizer and one did not.  The one that did not receive the independent variable is the plant I will compare to the plant that got the IV.  What is that variable?

• Independent Variable
• Dependent Variable
• Constant
• Control

Matt wants to test which liquid freezes first: Pepsi, milk, or apple juice.  He poured 50 mL of each into separate glasses and placed them in his freezer.  Every ten minutes, he checked his freezer and recorded his observations.  Pepsi froze first, followed by apple juice and then milk.  What is his dependent variable?

• type of liquid
• length of time until frozen
• amount of liquid
• location of freezer

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Betty wants to test which type of phone has the longest battery life.  She is comparing iPhone 6 Plus, Samsung S5,  and a Droid.  She bought each phone new and charged them completely to 100%.  Then, she turned each phone on and timed how long until the battery ran out.  What is the independent variable in her experiment?

• brand of phone
• time until battery ran out
• time it took to charge to 100%
• outlet used for charging

Tags

NGSS.MS-ETS1-3

Which of the following is a valid hypothesis?

• If I use huggies diapers then it will absorb the most liquid. .

• Tide works best for removing grass stains.

• If I use laundry detergent then it will clean my clothes.

• Pampers diapers absorb the most liquid.

What is a qualitative observation about this image? 

• There are 10 mini trees in the picture. 
• There are two color bushes in the picture. 
• There is one power line going across in the air. 
• There is art created from trees in this photo. 

A testable answer to a scientific question

• Question
• Observation
• Hypothesis
• Experiment

Tags

NGSS.MS-PS1-2

That this animal has fur is an...

• inference
• conclusion
• observation
• opinion

Tags

NGSS.MS-LS1-4

The number of apples in this basket is ______________________ data?

• quantitative
• qualitative
• independent
• dependent

The dependent variable in this experiment is - 

• Number of Bacteria
• Time of Incubation
• Culture Number
• Type of Bacteria

Tags

CCSS.6.SP.B.5B