woodchurch science

william’s words is a great site for some simple classroom and revision activities. many can be used as starters and plenaries. its easy to use. just go to the ‘free resources’ tab and select by type of activity. you can even drill down to the unit you are doing at ks3. some fun puzzles too. highly recommended! the site is an accompaniment to the book ‘williams words’ - every science word you’ll ever need all in the one place.

here’s a two page document download of all the important ‘how science works’ key words and phrases.

rock cycle - a cycle that describes how the three rock types change from one to another over millions of years.
sandstone - a type of sedimentary rock made up of grains of sand cemented together.
sedimentary rocks - a type of rock made up from layers of sediment that have built up over millions of years and become cemented together.
volcano - mountain or hill from which lava erupts out of the Earth’s crust.
limestone - a type of sedimentary rock formed from the shells and bones of sea creatures, which contains calcium carbonate.
magma - molten rock found deep below the surface of the Earth.
metamorphic rock - rock formed when sedimentary or igneous rocks are changed by intense heat and/or pressure.
lava - molten rock from deep below the surface of the Earth that reaches the surface through cracks or volcanoes.
marble - a type of metamorphic rock that is produced whenlimestone is heated under high pressure.
igneous rock - rock that is formed from molten lava or magma that has cooled and solidified.
basalt - a type of igneous rock with small crystals.
shale - a type of sedimentary rock made up of very fine grains.
granite - a type of igneous rock with big crystals.
cementation - in the gaps between compacted grains in sedimentary layers, chemicals in the water crystallise and ‘glue’ the grains together
slate - a type of metamorphic rock that has a layered structure.
intrusive - igneous rock with large crystals, formed when magma cools slowly underground, such as granite.
compaction - grains in sedimentary layers pressed tightly together by the enormous weight of layers of sediment deposited later.
extrusive - igneous rock with small crystals, formed when lava cools quickly on the surface of the earth, such as basalt.
crystalline - a substance that contains crystals is crystalline.
density - how heavy a material is for its size (density = mass/volume).