Scientific Investigation Sol

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

• dependent variable

• independent variable

• data

• control group

Squidward found new reeds to tryout for his clarinet.  He used an APPLAUSOMETER to measure applause after playing  Under the Sea with each reed.  The results were put in the table.
What was the independent variable?

• The Song

• The Reed

• The Applause

Observations that use numbers or measurements.

• qualitative observations

• quantitative observations

Tags

NGSS.MS-PS3-1

In the following experiment, which of the choices below should be kept constant?
"Three baseball players investigate to see who can throw a baseball the farthest. They mark off an area on the playground for their investigation."

• Color of ball

• Throwing order

• Throwing spot

Squidward found new reeds to tryout for his clarinet.  He used an APPLAUSOMETER to measure applause after playing  Under the Sea with each reed.  The results were put in the table.
What was the dependent variable?

• The Song

• The Reed

• The Applause

• less mass than the pebble

• the same mass as the pebble

• the same volume as the pebble

• less volume than the pebble

Tags

NGSS.5-PS1-2

• Type of soil

• Type of beaker

• Amount of water

• Number of bottles

A boy placed four leaves in a caterpillar’s cage. He observed the number of leaves in the caterpillar’s cage each day. Based on the data, the boy should infer that the caterpillar —

• is eating only every other day

• is eating each day

• will eat part of one leaf next Monday

• will stop eating during molting on Friday

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

What tool is used to determine the mass of an object?

• balance

• meter stick

• thermometer

• graduated cylinder

Juan is doing an experiment to see how long it takes an acorn to grow into a 0.5-meter-tall oak tree. Which two instruments should he choose?

• Thermometer and centimeter ruler

• Thermometer and calendar

• Centimeter ruler and pan balance

• Centimeter ruler and calendar