𝓁𝒶𝓈𝓉 𝓉ℯ𝓈𝓉

• What is an enzyme?

  A protein that acts as a biological catalyst
• What teeth are used for biting?

  Incisors
• What is a useful gas that is pumped around the body?

  Carbon dioxide
• What teeth are used for grinding and crushing?

  Molars and premolars
• What is the organ that carries food from mouth to stomach?

  Oesophagus
• What is the section of lungs where oxygen moves into the blood?

  Alveoli
• What teeth are used for gripping and tearing?

  Canine teeth
• What muscle sits under lungs and moves allowing the lungs to inflate and deflate?

  Diaphragm
• What is the name of the instrument used to listen to heartbeat?

  Stethoscope
• What is the area of the digestive system where products of digestion are absorbed?

  Small intestine
• Name the two liquids in the periodic table.

  Mercury (Hg) and Bromine (Br)
• How are most metals found?

  Typically within rocks in the earth's crust
• What are two ways metals can be extracted?

  Reduction with electrolysis and carbon
• Name three rare earth metals.

  Yerbium, Yttrium, Dysprosium
• Give a use for a rare earth metal.

  Glass polishing
• What conditions are needed for iron to rust?

  Moisture and air (oxygen)
• What do we call a substance made up of only one type of atom?

  An element
• What is the name of the chart of all of the elements?

  The periodic table
• What is the symbol for Chlorine?

  Cl
• What element has the symbol K?

  Potassium
• What are the five properties of metals?

  Malleability, ductility, shiny, conductors, solid state
• What other name is given to Group 1 in the periodic table?

  Alkali metals
• The halogens are found in which Group of the periodic table?

  Group 17
• What other name is given to Group 8/0 in the periodic table?

  Noble gases
• What group contains highly reactive solids, liquids, and gases?

  Group 7
• Describe the noble gases in terms of their state, colour, and reactivity.

  Odorless, colourless, monatomic gases, very unreactive
• Describe the alkali metals in terms of their state, colour, and reactivity.

  Typically silver coloured, low melting point, highly reactive
• What is mass?

  A large body of matter with no definite shape
• What is weight?

  The amount or quantity of heaviness or mass
• What is gravity?

  An invisible force that pulls objects together
• What unit is mass measured in?

  Kilograms (kg)
• What unit is the force weight measured in?

  Newtons (N)
• What happens to your mass when you visit the moon?

  Your mass remains the same
• What happens to your mass when you visit Jupiter?

  Your mass stays the same
• What happens to your weight if you visit the moon?

  Your weight would be about one-sixth of what it is on Earth
• What happens to your weight if you visit Jupiter?

  Your weight would be significantly greater
• What is the formula used to calculate the force of weight?

  $w =$$m \times g$
• On Earth, what is the force of gravity?

  $9.807 \text{ m/s}^2$
• If your mass is 50kg, calculate your weight on Earth.

  $490.35 \text{ N}$
• What is meant by balanced forces?

  Forces that are equal in magnitude