Letts Gcse Success -Mathematics Higher - Workbook

Filter - A device used to separate mixtures

Filter - An optical device to remove or enhance particular wavelengths of light.

Year - The time it takes the planet earth to orbit the sun. This takes around 365.25 days.

Reliable - Something that is consistently good and can be trusted.

Year - 365 days (366 days in a leap year), the time taken for planet earth to make one full revolution around the sun.

Confidence - The feeling of being certain and belief in what you do.

With over 300 UK stores and more than 40000 different products in store each year, The Works is Britain's top discount book store. A well known presence on the high street, The Works was founded in 1981 to bring affordable books to the public. It now offers a large range of exciting products, including arts and crafts products, toys, gifts and seasonal products, all at discounted prices, making it a superb place to find items for hobbies and gifts for all ages. The book selection includes children's books, fiction and non-fiction books on a wide range of subjects from food and drink and craft and DIY to entertainment, autobiographies and history. Art and crafts products range from children's craft sets to sewing materials and professional artists' brushes. As well as big brands, The Works also sells their own high quality branded products.