Science 2

• Effects of forces

  It can crush, move, stretch, stop, decrease/increase speed, spin or change the shape of an object
• Friction force

  Arrow goes opposite direction
• Gravity/weight force

  Arrow goes down
• Applied force

  Arrow goes toward object
• Drag force / air resistance

  Arrow goes opposite direction
• Spring force

  Arrow goes direction that pressure is released toward
• Magnetic force 

  Arrow goes toward magnet
• Tension force

  Arrow goes toward both sides
• Buoyant force

  Arrow goes up
• Calculating Resultant force

  Which force wins, by how much and which direction. Measured in newtons
• Mass

  Amount of matter in something, measured in kg, not a force and has the same value anywhere
• Weight

  Is a force, caused by the force of gravity acting on a mass, measured in newtons and has different value depending on where you are in the universe
• Calculating mass and weight

  Weight = mass × gravitational field strength
• Friction

  Resistance to the rubbing motion. It is made when 2 touching objects move past each other in opposite directions
• Calculating speed, distance and time

  Distance = speed × time
• Test tube

  Heating solids and liquids, mixing substances and small scale reactions
• Boiling tube

  A bigger test tube
• Beaker

  Heating liquids and solutions and mixing substances
• Conical/Erlenmeyer flask


  Heating liquids and solutions and mixing substances
• Filter funnel

  Separating solids from liquids
• Evaporating dish

  To evaporate a liquid from a solution
• Condenser

  Condenses a gas to a liquid
• Bunsen burner

  To heat the contents of test tubes or beakers
• Tripod

  To support apparatus above a bunsen burner
• Stand, clamp and boss

  To safely hold apparatus in place
• Guaze

  To spread heat from bunsen burner
• Pipette

  To transfer liquids or solutions
• Syringe

  To measure amounts of liquids and solutions
• Spatula

  To transfer solids
• Tongs

  To hold hot apparatus or test tube over flame
• Apparatus

  Equipment needed for an activity
• Motar and pestel

  Grinding substances
• Measuring cylinder

  Measure volume very precisely
• Burette

  Delivering a specific amount of volume
• Rubber bung

  Lid for test tubes
• Do's in the lab

  Wear safety equipment, tie up hair and read lables
• Don'ts in the lab

  Eat or drink, run and sniff or taste
• Scientific method

  A step by step way to solve a problem and answer a question
• Scientific method process

  Ask a question, make observations, form a hypothesis, conduct an experiment, analyze data and draw a conclusion
• Drawing conclusions

  The answer, support for your answer and why it happened