Wooden scales are handcrafted with precision, ensuring high-quality measurement tools that stand the test of time. From carefully selecting durable wood to engraving accurate markings, each ruler ...

measuring jugs and rulers. Students could identify the scale on these and decide which piece of equipment is most appropriate to accurately measure a series of objects and liquids.

You will need… sleep diaries, rulers, conversion tables, reaction timetable, Karolinska Sleepiness Scale. This investigation ... will carry out two simple measurements in the morning and ...