1. Version 2.0 Copyright © AQA and its licensors. All rights reserved. C2 2.2.6 Nanoscience

2. Using Exam pro items to support successful outcomes Version 2.0 Copyright © AQA and its licensors. All rights reserved. Learners will be able to test their progress against learning outcomes using questions from past AQA GCSE examinations C2 2.2.6

3. Foundation Tier- QSP 2F 04 Version 2.0 Copyright © AQA and its licensors. All rights reserved. C2 2.2.6

4. Mark scheme- Foundation Version 2.0 Copyright © AQA and its licensors. All rights reserved. C2 2.2.6 QAnswerMark (a) Because nano- sized particles are smaller than normal sized particles 1 (b)May cause harm when they are inside the body 1 Total 2

5. Higher Tier QSP 2H 05 Version 2.0 Copyright © AQA and its licensors. All rights reserved. C2 2.2.6

6. Mark scheme- Higher Version 2.0 Copyright © AQA and its licensors. All rights reserved. C2 2.2.6 QAnswerMark a 1-100nm in size Or A few ( hundred) atoms in size Accept billionth of a metre or any number that implies very small Accept measured in nanometres If answer ‘very small’ ignore incorrect numerical values 1 bAny two from Less tennis balls need to be made Tennis balls last longer or don’t have to replace as often Less materials/ resources / fuel used up/ saves resources Less energy used or making tennis balls uses energy Less pollution caused Less waste Accept saving materials Accept saving energy Accept named pollutant Accept global warming/ greenhouse effect e.g fewer tennis balls giving into landfill 2 Total 3

7. C2 2.2.6