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Unit 1 and 2 vocab

Physical properties and safety

Bunsen Burner Uses a flame to heat objects
Notebook Used to record data
Hot Plate Uses electricity to heat objects
Test Tube Glass tube used to hold liquids
Graduated Cylinder Used to measure the exact amount and volume of liquids
Meter Stick Used to measure length
Stopwatch Used to measure time
Eyedropper Allows you to add a small amount of liquid one drop at a time
Beaker A cylindrical container used to hold and measure liquids
Flask A narrow necked container used to hold and measure liquids or powders
Spring Scale Measures the weight of an object using gravity to pull on it
Balance Scale Measures the weight of an object by comparing it to something with a known weight
Triple Beam Balance Instrument used to measure mass very precisely
Gloves Used to protect hands
Goggles Used to protect eyes
Funnel Makes pouring easier
Lab Apron Used to protect clothing
Strainer or Sieve Separates bigger materials from smaller ones
Waft Fan the air to get the scent of the smell
Dispose To throw away or get rid of something
Prevent To keep something from happening
Procedure Steps followed during an experiment
Variable The part of an experiment that you change
Scientific Method Problem, Hypothesis, Materials, Procedure, Observations, and Conclusion
Observation Noticing something about the world around you
Inference Using clues to find the answer
Classify To put into groups
Investigation The scientific process used to answer questions by collecting data; you change one variable and everything else stays the same
Hypothesis An educated guess that is backed by reasonable information
Data Information found during an investigation that is recorded and organized
Conclusion The end of the investigation where you determine if your hypothesis was correct
Mass How much matter is in something. Measured in grams using a triple beam balance and always stays the same
Volume How much space something takes up. Measured in liters or milliliters. Example: Graduated cylinder
Thermometer Measures temperature. How hot or cold something is in Celsius
Buoyancy The ability to float. Typically due to its shape or because it is less dense than water
Density The amount of molecules in matter that effect whether or not it is buoyant
Weight The measurement of the pull of gravity of an object
Gravity A force that pulls towards the center of a heavenly body
Physical Properties Parts of an object that can be observed using the five senses
Phases or States of Matter Solid, liquid or gas
Physical Change A change from one form to another without creating a new substance (ice melting, cutting paper, shredding cheese)
Chemical Change A change that produces a new substance (metal rusting, vinegar and baking Soda reaction, food molding)
Matter Anything that has mass and takes up space (solid, liquid, gas)
Molecules A particle of matter made up of two or more atoms
Atom The basic unit of matter
Solid Matter that retains a definite size and shape: The molecules are packed together tightly
Liquid Matter that retains a definite size, but not a definite shape
Gas Matter that does NOT retain a definite size or shape. The molecules are far apart and move rapidly
Boiling Point of Water 100° C
Freezing Point of Water 0° C
Melting Point The temperature at which point a substance changes from a solid to a liquid. 0° C is the melting point of water
Evaporation The point at which water turns to water vapor
Condensation The point at which water vapor turns back to water
Constant Property Property of matter that does NOT change. It stays the same
Magnetism The force of attraction or repel between 2 objects usually metal (iron, nickel, Cobalt & steel)
Attract A force that causes objects to pull together
Repel A force that causes objects to push back or away from one another
Mixture Two or more substances that when mixed together can be separated easily (trail mix, fruit salad)
Solution Two or more substances that when mixed together can NOT be separated (salt water, sweet tea)
Soluble Something that can be dissolved (sugar, salt)
Solvent The liquid that does the dissolving (water)
Filtration A process using a strainer to separate the larger particles in a mixture
Settling Allows the dense materials to sink to the bottom
Dissolve To add solid or gas to a liquid so that the particles get so small you can no longer see them
Ingredients The individual substances added to a mixture
Potential Energy Stored energy. No motion is taking place. This depends on an object's position. Ex. A ball NOT rolling, a still roller coaster at the top of the track, a book on a shelf
Kinetic Energy The energy of motion. This depends on mass and speed. Ex. A book falling or a ball rolling
Friction The force in which two things rub against each other (It causes things to heat up and slow down)
Force A push or a pull
Pressure To apply a force on the Surface of an object
Motion A change in the position of an object
Energy The ability to do work (potential, kinetic, chemical, mechanical, electrical, heat, light and sound)
Mechanical Energy Work done from something that with moving parts
Conductor A material that allows heat energy or electricity to pass through it easily (usually metal)
Insulator A material that does not let heat energy or electricity pass through it easily (plastic, rubber, cloth, wood, Styrofoam)
Thermal Another word for heat
Solar Energy Energy produced by the Sun
Radiation The movement of thermal energy through space
Heat Resistant Able to withstand heat
Absorb To take in or soak up
Convection The movement of heat energy through liquids and gases in currents. Heat rises when it cools then it sinks (lava lamp)
Current Electricity The flow of electrons through a conductor or path. Will produce light, heat or sound
Circuit A closed path that electrons flow through, made up of a source, path, switch and resistor
Static Electricity Electric charge that builds up on an object and instead of flowing as a current, it creates a spark
Source/Cell Electricity from a battery, solar, cell, fossil fuels or wind generators
Path A wire that a current flows through
Switch Turns a circuit on and off
Resistor/Load The object you want to work (light, TV, radio)
Electromagnet temporary magnet made of Wire wrapped around a piece of iron hooked up to a battery
Series Circuit An electric circuit in which electrons have only one path to take. If one light goes out or is removed, they all go out
Parallel Circuit A circuit where the electrons have many paths to take. If one light is removed the other lights will still work and will get brighter
Reflect The bouncing off of light rays from a surface (Enters and exits at the same angle) (Mirror, still water)
Refract The bending of light as it moves from one material into another (Rainbows, pencil in water)
Visible Light Spectrum The mixture of Colors of White light broken into their individual colors of the rainbow (ROY G BIV)
Convex Lens Thicker in the middle, makes objects look bigger
Concave Lens Lens is thinner in the middle, makes objects look smaller
Transparent Clear, all light can pass through
Translucent Cloudy, some light can pass through (Wax Paper, Stain Glass Window)
Opaque No light can pass through (Trying to look through a wooden desk)
Sound Created when molecules vibrate. The closer the molecules the better sound travels. Solid Carries sound the best
Vibration Back and forth motion of a substance that produces sound
Created by: Justin.magers