Scientific Investigation PLTW

the factor that is changed by the scientist in a science experiment.

• dependent variable

• independent variable

• constant

• hypothesis

Tags

NGSS.MS-PS2-2

observations that are made using numbers or measurements.

• quantitative data

• variable

• qualitative data

• constant

the factor that is measured in the science experiment.

• constant

• independent variable

• hypothesis

• dependent variable

Tags

NGSS.MS-PS1-2

A well designed experiment should be able to be repeated.

• true

• false

Tags

NGSS.HS-PS1-3

Counting the number of barnacles on a boat would be what type of data?

• qualitative

• quantitative

• quick

• quiver

Describing the barnacles on a boat would be what type of data?

• qualitative

• quantitative

Which of the following is a testable hypothesis?

• Roses are more beautiful than violets.

• A plant needs at least five hours of sunlight per day to grow.

• Ice cream is delicious.

• Humans will someday land on Mars.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

Grace wanted to see if her plants would grow faster if they were placed under an artificial growing lamp instead of sunlight. She placed half of her plants in a room with two windows and an artificial growing lamp. She placed the other half of the plants in a room with six windows. What is one major mistake Grace made when setting up this experiment?

• The plants receiving light from the artificial lamp were placed in different sized containers.

• All of the plants received equal amounts of fertilizer.

• All of the plants were watered the same amount.

• She used two different kinds of plants

Tags

NGSS.MS-LS1-5

The mass of a rock was taken on a triple beam balance and the measurement is shown. What is the mass of the rock?

• 436.0 g
• 436.8 g
• 430.6 g
• 437.0 g

Isaac's family went on a trip to Africa and visited the Plains and Acacia Savannahs for  five straight days. Isaac decided to keep a count of the total number of Wildebeest he saw each day and created the chart above. What is missing from his chart?

• The chart needs to have an appropriate title.
• The chart needs to have the actual location where the wildabeest were counted.
• The chart needs to indicate how many wildebeests are represented in one wildebeest picture.
• The X-axis needs to be labeled with the days he visited the area.