ACT Prep Exam 2022 Latest with complete solution Guaranteed A+

Steps of a Scientific Method - ANSWER 1. Question/Problem 2. Hypothesis 3. Experiment 4. Analysis 5. Conclusion Dependent Variable - ANSWER the variable that is measured during the experiment and is affected by the independent variable Constant - ANSWER a variable that remains unchanged during the experiment and is unaffected by other variables Controlled Variable - ANSWER a factor that is kept constant throughout an experiment Rate of Change - ANSWER slope of tangent to the curve at a given point Absolute Zero - ANSWER The lowest possible temperature, about -273 degrees Celsius Alloy - ANSWER a substance composed of two or more metals Atom - ANSWER The smallest part of an element; the fundamental building block of an element. Barometer - ANSWER an instrument that is used to measure atmospheric pressure calorie - ANSWER a unit of heat energy equal to 4.185 joules *remember, it's not the same as Calorie, which is equal to 1 kilocalorie or 1000 calories Carcinogen - ANSWER A cancer causing agent Carnivore - ANSWER Eats only meat Compound - ANSWER A substance made up of two or more chemically bonded elements in a fixed proportion Element - ANSWER A substance consisting of only one type of atoms Concentration - ANSWER Amount of substance dissolved in a given amount of solvent Condensation - ANSWER Change from a gaseous to liquid phase Conductor - ANSWER A material that allows heat and electricity to readily flow through it with minimal resistance Diffusion - ANSWER The flow of liquid or gas from an area of higher concentration to an area of lower concentration Fossil - ANSWER The preserved remains of a very ancient organism Frequency - ANSWER The number of cycles per unit time Infrared Radiation - ANSWER Electromagnetic waves whose wavelength is longer than that of visible light Insulator - ANSWER A material that blocks the flow of heat or electricity Ion - ANSWER An atom or molecule that has become charged by either losing or gaining electrons Kinetic Energy - ANSWER The energy of an object or a system due to its motion Potential Energy - ANSWER The energy of an object or a system due to its position or configuration Ore - ANSWER A piece of raw earth from which a metal can be extracted Osmosis - ANSWER The movement of liquid through a membrane Symbiosis - ANSWER A long-term interaction between two different species in which they both are benefited from the relationship Absolute - ANSWER Viewed or existing independently and not in relation to anything else Accuracy - ANSWER The degree to which the measurement is close to the standard; freedom from mistakes Analogous - ANSWER Different in structure but similar in function