A set of mathematical logic/reasoning puzzles involving gears. 4 worksheet - 7 top level questions with 74 subquestions. Includes: Files as PDF and WORD also POWERPOINT with the questions on for class discussion plus All the questions and individual gears as CLIP-ART for use in you own documents.

How many time do other gear(s) turn when the initial gear turns. All questions involve 2 gears 2 worksheets 10 questions Gear clip-art and question images are included for use in your other documents.

How many time do other gear(s) turn when the initial gear turns and which direction do they turn? Next level up from GEARS 2A - this time the direction of turn is required and some turns expressed as fractions. Hopefully student will be starting to get the idea that it is only the FIRST and LAST gears that need to be considered in calculations as intermediate/inbetween gears do not make any difference. 2 worksheets 10 questions Gear clip-art and question images are included for use in your other documents.

When the initial gear spins at a given speed at what speed do other gears spin. All questions involve 2 gears Also requires knowledge of fractions, ratio , decimals / recurring decimals. 2 worksheets 8 questions Gear clip-art and question images are included for use in your other documents.

What angle do gears have to rotate through to give certain reading on a scale? Also requires knowledge of angles, fractions, ratio , decimals / recurring decimals. 5 worksheets - 10 questions + ‘working out’/ answer sheets if required. Gear clip-art and question images are included for use in your other documents.

How many time have you to rotate a certain gear so that all gears return to their initial positions? Uses Lowest common multiple. 2 Worksheets 9 questions Increasing difficulty. +All the ARTWORK I used to create this resource

USES KS3 Science VOCAB. words/terms I think this will be a very challenging but useful activity Answers included or should that be nswrs ncldd. A great activity at any time of the year to keep SCIENCE vocab /words in the for front of their thoughts. perhaps try to complete it over the Christmas Holidays It could be set as a competition -individual/small group/ table Each pupil could be given a different set of questions. A table could be given all 10 sheets or all the same sheet and work collaboratively Lots of possible variations Please lets me know how it goes.