Vocabulary Density Quantitative Analysis

“A cube of aluminum and a cube of lead may be the same size, but the lead feels heavier in your hand.” In this sentence, the word “cube” most nearly means:

• A solid with six equal square faces
• A small measurement of density
• A gemstone used in experiments
• A unit of atomic weight

Tags

NGSS.HS-PS2-1

“This is why density is often used as an identifying property.” The phrase “identifying property” most nearly means:

• A clue that reveals what a substance is
• A law of nature that never changes
• A unique ownership of an object
• A measurement tool invented by scientists

“Understanding these differences lets chemists predict and manipulate mixtures.” The word “manipulate” most nearly means

• To ruin accidentally
• To control or influence
• To ignore carefully
• To measure exactly

“Helium balloons rise because helium is less dense than the surrounding air.” In this sentence, the phrase “surrounding air” most nearly refers to:

• The entire Earth’s atmosphere
• The air in a laboratory
• The air immediately nearby
• The oxygen inside the balloon

“Density provides a window into how tightly matter is packed at the particle level.” Here, the word “window” most nearly means

• An opening in a wall
• A transparent glass pane
• A way of understanding
• A decorative structure

Tags

NGSS.HS-PS1-3

“Density becomes a detective tool.” In this sentence, the phrase “detective tool” most nearly means:

• An instrument for measuring fingerprints
• A clue used to solve mysteries
• A telescope for outer space
• A method for collecting rocks

“Saturn’s density is so low that, hypothetically, it could float in a giant bathtub of water.” The word “hypothetically” most nearly means:

• In real life
• In imagination or theory
• In ancient history
• In daily practice

“Stars also reveal their secrets through density.” In this sentence, the word “reveal” most nearly means:

• To keep hidden
• To make known
• To argue about
• To measure directly

“Massive stars collapse into neutron stars, where protons and electrons combine to form neutrons.” Here, the word “collapse” most nearly means:

• To break apart suddenly
• To fold neatly
• To fall inward
• To freeze in space

“This simple property, density, is one of the most powerful indicators of whether a distant world could be habitable.” The word “habitable” most nearly means:

• Able to support life
• Covered with water
• Full of oxygen
• Easy to observ