ACT Science Truths Practice Questions and Answers 100% Pass

ACT Science Truths Practice Questions and Answers 100% Pass acceleration - Correct Answer️️ -Change in velocity divided by the time it takes for the change to occur accuracy - Correct Answer️️ -A description of how close a measurement is to the true value of the quantity measured. acid - Correct Answer️️ -A substance that increases the hydrogen ion concentration of a solution. atom - Correct Answer️️ -Basic unit of matter atp - Correct Answer️️ -(adenosine triphosphate) main energy source that cells use for most of their work base - Correct Answer️️ -A substance that decreases the hydrogen ion concentration in a solution. calibration - Correct Answer️️ -Any procedure used to evaluate the accuracy of a measurement system and, when sources of error are found, to use that information to correct or improve the measuring system catalyst - Correct Answer️️ -SOMETHING CAUSING CHANGE cell membrane - Correct Answer️️ -A cell structure that controls which substances can enter or leave the cell. cell wall - Correct Answer️️ -A rigid layer of nonliving material that surrounds the cells of plants and some other organisms. chemical change - Correct Answer️️ -A change in matter that p