| Question | Answer |
| Q1 What is an element? | simplest things, made of one type of atom
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Q2 What is the Periodic Table? | where all the elements are listed
| Q3 What do we call a molecule where two atoms are chemically joined together? | diatomic molecule
| Q4 What are the alkali metals and where can they be found? | a family of very reactive metals fouhd in group 1
| Q5 What are the halogens and where can they be found? | a family of very reactive non metals, group 7 in the Periodic Table
| Q6 What are the Noble Gases and where can they be found? | a family of gases which are very unreactive, group 8 in the Period
| Q7 What are the Transition metals and where can they be found? | a group of very useful metals in the middle of the Periodic table
| Q8 What are symbols? | a shorthand way of writing element names
| Q9 What is a Variable? | something that can change during an investigation
| Q10 Describe what is meant in science by a relationship | the link between two variables
| Q11 Describe what is meant by a fair test | changing only one variable during an investigation so the results are reliable
| Q12 In an investigation what you are trying to find out is called? | the aim
| Q13 What is a conclusion in an investigation? | answer your aim
| Q14 What do we call the substance that dissolves? | Solute
| Q15 what is a solvent | the liquid that dissolve the solute (solid)
| Q16 What is formed when a solute dissolves in a solvent? | Solution
| Q17 What is a saturated solution? | maximum solute dissolved at that temperature
| Q18 What do we call a substance that will dissolve? | Soluble
| Q19 What does insoluble mean? | a substance which will not dissolve
| Q20 The name given to a reaction which gives out energy (usually heat)? | Exothermic
| Q21 What is the definition of endothermic? | a reaction which takes in energy (usually heat)
| Q22 Name a 3 signs that a chemical reaction has taken place | any from colour change, gas given off, solid (precipitate) apperars r dissapears or energy change such as sound, heat or light
| Q23 Give a definition of enthalpy | a measure of the change in energy during a reaction
| Q24 The substances at the start of a reaction are called the | Reactants
| Q25 The substances at the end of a reaction are called th | products
| Q26 Name three ways to speed up a chemical reaction | Three of increase temp, catalyst, smaller particles, higher concen |
