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Science Exam 8th

Freedom of Movement the way molecules in a substance move around relative to each other
Kinetic Energy the energy that an object has because it is moving
molecular attraction a pull between two molecules that is always the same for a substance
molecule the smallest particle of a substance that still has the properties of that substance
phase a noticeably different form or state of the same substance
refute to provide evidence that goes against the claim.
scale the relative size of things
temperature a measure of how hot or cold something is; the higher the temperature is, the more energy it has
atoms the tiny pieces that all matter—all the stuff in the world—is made of
chemical formuioli letters and numbers showing the types and number of atoms that repeat to make up a substance
claim a proposed answer to a question about the natural world
convert to change from one type to another
energy the ability to make things move or change
evidence information about the natural world that is used to support or go against (refute) a claim
model an object, diagram, or computer program that helps us understand how a system, or part of a system, works
potential energy the energy that is stored in an object or system
reasoning the process of making clear how your evidence supports your claim
transfer to move from one object to another or one place to another
system a set of interacting parts forming a complex whole
fertilizer a substance that is added to soil to help plants grow
substance something that is made of all the same atoms or groups of atoms
property something that can be observed about a substance, such as color, smell, or boiling point
scientific argument a claim supported by evidence
Short answer #1 : Explain how food we eat is like a battery in devices we use.
Short answer #2 : Describe the 3 phases of matter found on earth with regard to how the molecules move, freedom of movement and molecular attraction.
Explain what happens for a phase of matter to change state.
What is the criteria you were asked to meet for the Baby Warmer that you designed and why each was important.
Created by: TU675