Unit 1 Test Review - PhySci

A student is investigating how the concentration of salt in water affects its boiling point. In each trial, she uses 200 milliliters of water and heats it until it boils. Match the variables with the part of the experiment they represent.

• independent variable

• the boiling point of water

• dependent variable

• the concentration of salt

• control variable

• the amount of heat applied

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is a key feature of a universal law?

• It applies universally without exception.

• It applies only in certain situations.

• It is subject to change over time.

• It is dependent on specific conditions.

Tags

NGSS.HS-PS2-1

What is a key characteristic of scientific models?

• They are always perfect representations.

• They are static and unchanging.

• They evolve with new evidence.

• They are only used in theoretical research.

Tags

NGSS.MS-ETS1-4

Determine each variable in an experiment where the bounce height of different balls are measured.

• type of ball

• control variable

• height ball is dropped from

• dependent variable

• height of the bounce

• independent variable

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

Which of the following best describes the scope of physical science?

• the study of matter, energy, and their interactions

• the study of living organisms and their environments

• the study of celestial bodies and the universe

• the study of human behavior and societies

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS2-1

NGSS.MS-PS3-1

Match the tool to what it can measure.

• time

• stopwatch

• mass

• graduated cylinder

• length

• scale

• temperature

• thermometer

• volume

• metric ruler

Which example represents a closed system ?

• an uncapped soda bottle

• a capped thermos

• a pot of boiling water

• an aquarium

A theory ​​ (a)   while a law ​ (b)  

• explains a phenomenon
• makes a statement about a phenomenon

Convert 260 centimeters to meters.

Mathematical Equivalence

ON

How many milliliters are in 6.2 liters?

Mathematical Equivalence

ON