Act Science

ACT Science Strategies

Multiple Choice

It is suggested that you spend an average of _____ minutes total per passage and items.

• 5
• 6.5
• 4
• 8.75

Multiple Choice

How many questions are on the science test?

• 35
• 40
• 45
• 30

Multiple Choice

Which one of the following is NOT a type of passage on the test?

• Data Representation
• Research Summary
• Conflicting Viewpoints
• Science Reasoning

Multiple Choice

Guessing on the ACT test is strongly discouraged.

• True
• False

Multiple Choice

Which passage should you tackle first?

• the first passage in the test
• the conflicting viewpoints passage
• the one that seems the most complicated
• the one you find easiest to handle

Multiple Choice

How are the questions for a passage generally arranged?

• chronologically

• easier to more difficult

• complicated to simple

• difficult to easier

Multiple Choice

You should preview the questions before reading the passage.

• True

• False

Vocab

science ACT vocab

Multiple Choice

A factor in an experiment that remains constant

• Controlled variable

• Experimental variable

• Independent variable

• Outlier

Multiple Choice

Forming a calculation based on incomplete data

• Exoplanet

• Extraneous

• Estimation

• Exempt

Multiple Choice

To prove or show to be right or reasonable

• Quantify

• Generalize

• Justify

• Juried

Multiple Choice

The act of pointing out or pointing to something

• illicit

• index

• irradicate

• indication

Multiple Choice

To figure out and tell beforehand

• Pretend

• Predict

• Precursor

• Propose

Multiple Choice

To understand fully

• Complete

• Comprehend

• Conjugate

• Correct

definitions

Multiple Choice

"Molecule"

Which of the following is the best definition for this word?

• fundamental atom particle that has a positive charge

• second smallest unit of a chemical compound

• smallest unit of a chemical compound

• chemical compound that is always composed of several different atoms

Multiple Choice

"Density"

Which of the following is the best definition for this word?

• quantity of heat energy

• substances that participate in a chemical reaction

• quantity of a body's matter

• mass per volume of a substance

Multiple Choice

"Boiling Point"

Which of the following is the best definition for this word?

• a liquid or a gas

• the temperature when a liquid becomes a gas

• rate of change in distance with respect to time

• heat transfer as a result of fluid movement

Multiple Choice

"Compound"

Which of the following is the best definition for this word?

• a substance made up of more than one element

• a liquid or gas

• the force that attracts an object towards the center of the earth

• a section of DNA that determines inheritance

Practice problems

Multiple Choice

Based on this graph, pain is caused by

• low frequencies of sound

• high frequencies of sound

• high intensities of sounds at various frequencies

• high intensities of sounds at high frequencies

Multiple Choice

Some ACT science questions do require prior knowledge. To use this graph, you would probably need to know

• how sound waves are generated

• how sound travels differently in air versus water

• scientific notation (powers of ten)

• how ears interpret sound

Multiple Choice

What is the lowest frequency humans can hear?

• 2 Hz

• 20 Hz

• 3 x 10⁴ Hz

• 2 x 10⁵ Hz

Multiple Choice

Which of these would cause pain in human ears?

• anything over 0 db

• 160 db

• 40 db

• 118 db

Multiple Choice

What does the dotted line represent?

• sound in air

• sound in water

• threshold of hearing

• threshold of pain

Multiple Choice

What does the dashed line represent?

• sound in air

• sound in water

• threshold of hearing

• threshold of pain

Multiple Choice

What is on the yaxis?

• intensity (Hz)

• intensity (db)

• frequency (Hz)

• frequency (db)

Multiple Choice

What is on the x axis?

• intensity (Hz)

• intensity (db)

• frequency (Hz)

• frequency (db)