Benchmark Study Prep

This variable in an experiment is the one being deliberately changed by the scientist. 

• dependent variable
• independent variable
• data
• control group

Tags

CCSS.6.EE.A.2C

A possible explanation to a problem that has not yet been tested. 

• data
• theory
• hypothesis
• fact

In a controlled experiment, how many independent variables can be worked with at a time? 

• one
• none
• two or more
• how ever many makes sense.

A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.

• Diameter of the ball
• Force acting on the ball
• Height that the ball bounces
• Height from which the ball is dropped

Tags

CCSS.6.EE.C.9

 John wants to see if it takes salt water longer to freeze than fresh water.  He fills one ice tray with distilled water.  He fills the other with distilled water than has two tablespoons of salt added.  He uses the same amount of water in each.  He places them in the same freezer and checks every ten minutes to record how long it takes each to fully freeze.  What is the CONTROL in this experiment?

• amount of salt added to the water
• the ice tray with fresh water
• the ice tray with salt water
• there is not control in this experiment

 John wants to see if it takes salt water longer to freeze than fresh water.  He fills one ice tray with distilled water.  He fills the other with distilled water than has two tablespoons of salt added.  He uses the same amount of water in each.  He places them in the same freezer and checks every ten minutes to record how long it takes each to fully freeze.  What are the  CONSTANTS in the experiment?

• placing the ice trays in the same freezer
• using the same amount of water in each tray
• using the same type of ice tray for the fresh and salt water
• all of these are constants

When water molecules sticks to other water molecules.

• Adhesion
• Universal Solvent
• Cohesion
• Surface Tension

What is structure A?

• Substrate
• Active site
• Enzyme
• Products

Tags

NGSS.MS-LS1-7

What is structure D?

• Substrate
• Active site
• Enzyme
• Products

Tags

NGSS.MS-LS1-2

What is structure C?

• Substrate
• Active site
• Enzyme
• Products

Tags

NGSS.MS-PS1-5