Atoms, elements, compounds, Periodic Table, chemical and physical changes; testing for Hydrogen, oxygen and carbon dioxide. Aimed at Year 8 & 9 students.
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| 416999028 | Element | A pure chemical consisting of only ONE type of atom | 0 | |
| 416999029 | Atom | A small indivisible particle which is the basic building block of all matter | 1 | |
| 416999030 | Compound | 2 or more different types of atoms chemically combined | 2 | |
| 416999031 | Molecule | 2 or more different non-metals chemically combined | 3 | |
| 416999032 | Ionic Lattice | The structure formed when non-metals and metals chemically combine | 4 | |
| 416999033 | Periodic table | A list of the elements, organised based on their chemical properties | 5 | |
| 416999034 | Metals | The majority of elements in the Periodic Table |  | 6 |
| 416999035 | Non-metals | The elements on the right-hand side of the Periodic Table and Hydrogen (coloured in red) |  | 7 |
| 416999036 | Metalloids | The elements found on the staircase of the Periodic Table (coloured in pink) | | 8 |
| 416999037 | Periods | The horizontal rows on the Periodic Table | 9 | |
| 416999038 | Groups | The vertical columns in the Periodic Table. Always numbered with Roman Numerals | 10 | |
| 416999039 | Lustrous | A property of metals, meaning shiny. | 11 | |
| 416999040 | Lustrous | Name the missing property of metal 1) Solid (except Mercury) 2) Malleable 3) Ductile 4) Conducts heat and electricity | 12 | |
| 416999041 | Malleable | A property of metals, meaning it can be hammered into shape | 13 | |
| 416999042 | Malleable | Name the missing property of metal 1) Solid (except Mercury) 2) Lustrous 3) Ductile 4) Conducts heat and electricity | 14 | |
| 416999043 | Ductile | A property of metals, meaning it can be drawn into wires | 15 | |
| 416999044 | Ductile | Name the missing property of metal 1) Solid (except Mercury) 2) Malleable 3) Lustrous 4) Conducts heat and electricity | 16 | |
| 416999045 | Solid | Name the missing property of metal 1) Lustrous 2) Malleable 3) Ductile 4) Conducts heat and electricity | 17 | |
| 416999046 | Mercury | All metals are solid at room temperature except for ................? | 18 | |
| 416999047 | Conductor | A property of metals, meaning it can transmit heat or electricity | 19 | |
| 416999048 | Brittle | Non metals are not hard; they are .................. | 20 | |
| 416999049 | Dull | Non metals are not shiny; they are .................. | 21 | |
| 416999050 | Poor | Non-metals are GOOD/POOR conductors of heat and electricity. | 22 | |
| 416999051 | Metalloids | Have properties of both Metals and Non-Metals | 23 | |
| 416999052 | Reactant | A chemical which undergoes a chemical change to become a new substance. | 24 | |
| 416999053 | Product | A new chemical formed by the chemical change of one or more reactants | 25 | |
| 416999054 | Chemical reaction | Reactants --> Products | 26 | |
| 416999055 | Word equation | Uses words to describe a chemical reaction eg. Magnesium + Oxygen → Magnesium Oxide | 27 | |
| 416999056 | Chemical Equation | Uses chemical symbols to describe a chemical reaction eg. Mg + O₂→ MgO | 28 | |
| 416999057 | Catalyst | A chemical which speeds up a chemical reaction but is not used in it. | 29 | |
| 416999058 | Hydrogen | A gas with the chemical formula H₂ | 30 | |
| 416999059 | Oxygen | A gas with the chemical formula O₂ | 31 | |
| 416999060 | Carbon Dioxide | A gas with the chemical formula CO₂ | 32 | |
| 416999061 | Hydrogen | The pop test is used to test for which gas? | 33 | |
| 416999062 | Oxygen | If a glowing splint is placed in a gas and it re-ignites, which gas is present? | 34 | |
| 416999063 | Carbon Dioxide | Which gas, when bubbled through lime-water, will turn it a milky cloudy colour | 35 | |
| 416999064 | Carbon dioxide | This gas will extinguish (put out) a flame. | 36 | |
| 416999065 | Temperature | There are 5 signs that a chemical reaction has taking place. What is number 5) ? 1) Production of light 2) Production of gas 3) Permanent change in colour 4) Formation of a precipitate 5) Change in ................. | 37 | |
| 416999066 | Light | There are 5 signs that a chemical reaction has taking place. What is number 5) ? 1) Change in temperature 2) Production of gas 3) Permanent change in colour 4) Formation of a precipitate 5) Production of | 38 | |
| 416999067 | Gas | There are 5 signs that a chemical reaction has taking place. What is number 5) ? 1) Production of light 2) Change in temperature 3) Permanent change in colour 4) Formation of a precipitate 5) Production of | 39 | |
| 416999068 | Temperature | There are 5 signs that a chemical reaction has taking place. What is number 5) ? 1) Production of light 2) Production of gas 3) Permanent change in colour 4) Formation of a precipitate 5) Change in ................. | 40 | |
| 416999069 | Colour | There are 5 signs that a chemical reaction has taking place. What is number 5) ? 1) Production of light 2) Production of gas 3) Change in temperature 4) Formation of a precipitate 5) Permanent change in .............. | 41 | |
| 416999070 | Precipitate | There are 5 signs that a chemical reaction has taking place. What is number 5) ? 1) Production of light 2) Production of gas 3) Permanent change in colour 4) Change in temperature 5) Formation of a .................. | 42 | |
| 416999071 | Precipitation | When 2 liquids react to form a solid, it is called a .................... reaction. | 43 | |
| 416999072 | Solid | State of matter with low energy; atoms are bonded tightly. | 44 | |
| 416999073 | Liquid | State of matter with medium energy; atoms are loosely bonded. | 45 | |
| 416999074 | Gas | State of matter with high energy; atoms are not bonded together. | 46 | |
| 416999075 | Evaporation | When a liquid is heated and becomes a gas | 47 | |
| 416999076 | Condensation | When a gas is cooled and becomes a liquid | 48 | |
| 416999077 | Freezing | When a liquid is cooled and becomes a solid | 49 | |
| 416999078 | Melting | When a solid is heated and becomes a liquid | 50 | |
| 416999079 | Sublimation | When a solid directly becomes a gas (or a gas directly becomes a solid) without first being a liquid | 51 | |
| 416999080 | Size | There are 3 types of a Physical Change. Which is missing? 1) Change in shape 2) Change in state 3) Change in ......... | 52 | |
| 416999081 | State | There are 3 types of a Physical Change. Which is missing? 1) Change in shape 2) Change in size 3) Change in ............. | 53 | |
| 416999082 | Shape | There are 3 types of a Physical Change. Which is missing? 1) Change in state 2) Change in size 3) Change in ................ | 54 | |
| 428093093 | Precipitate | A solid formed by the reaction of two liquids | 55 | |
| 428093094 | Temperature | Ways to increase the rate of a reaction are: 1) Increase the concentration 2) Decrease the particle size 3) Use a catalyst 4) Increase ..................... | 56 | |
| 428093095 | Concentration | Ways to increase the rate of a reaction are: 1) Increase the temperature 2) Decrease the particle size 3) Use a catalyst 4) Increase ..................... | 57 | |
| 428093096 | Catalyst | Ways to increase the rate of a reaction are: 1) Increase the concentration 2) Decrease the particle size 3) Increase temperature 4) Use a ............................ | 58 | |
| 428093097 | Size | Ways to increase the rate of a reaction are: 1) Increase the concentration 2) Increase the temperature 3) Use a catalyst 4) Decrease particle ..................... | 59 | |
| 428093098 | Increase | Decreasing the particle size will INCREASE/DECREASE surface area | 60 | |
| 428093099 | Electron | A negatively charged subatomic particle; located outside the atomic nucleus | 61 | |
| 428093100 | Proton | A subatomic particle that has a positive charge and that is found in the nucleus of an atom | 62 | |
| 428093101 | Neutron | A subatomic particle that has no charge and that is found in the nucleus of an atom | 63 | |
| 428093102 | Nucleus | The centre of an atom; consists of protons and neutrons | 64 | |
| 428093103 | Shells | The regions of space around the nucleus in which electrons are found. | 65 | |
| 428093104 | Configuration | The electron ............... describes how electrons are arranged in their shells | 66 | |
| 428093105 | 2 | The number of electrons which can fill the 1st shell. | 67 | |
| 428093106 | 8 | The number of electrons which can fill the 2nd shell. | 68 | |
| 428093107 | 8 | The number of electrons which can fill the 3rd shell.(applies only to first 20 elements) | 69 | |
| 428093108 | 2 | The number of electrons which will occupy the 4th shell. (applies only to first 20 elements) | 70 | |
| 428173552 | Neutron |  | 71 | |
| 428173553 | Electron |  | 72 | |
| 428173554 | Proton |  | 73 | |
| 428173555 | Nucleus |  | 74 | |
| 428177039 | Atomic number | Identifies the atom; is equal to the number of protons |  | 75 |
| 428177040 | Atomic mass | Equals the number of protons + neutrons in an atom |  | 76 |
| 428177041 | Neutrons | Atomic Mass - Atomic Number = Number of ................. | 77 | |
| 428177042 | Electrons | In a neutral atom, the number of .................... is equal to the number of protons | 78 |
