Lesson Plan: C1.4.06

Hamble Lesson Observation Plan
Learning About
What is nanoscience?
Keywords:
  • Volume ratio: The surface-area-to-volume ratio, also called the surface-to-volume ratio and variously denoted sa/vol or SA:V, is the amount of surface area per unit volume of an object or collection of objects. (1)
  • Surface area: The surface area of a solid object is a measure of the total area that the surface of the object occupies. (1)
  • Particles: You can use the idea of particles to explain the properties of solids, liquids and gases. (1)
  • Nanoparticles: Nanoparticles, are smaller than fine particles (PM2.5), which have diameters between 100 and 2500 nm (1)
Memory Anchor:
Method Precise Learning Objective Linked Question / Activity
(Designed for maximum working out)		 Stepping Stones Pitstop Check
(Thinking Map)
Nanoscience refers to structures that are 1?100 nm in size, of the order of a few hundred atoms. What sort of structures does nanoscience refer to?

Extended writing: describe the history of nanoscience Video clip YouTube: What is nanoscience? https://www.youtube.com/watch?v=0U2hyQ1dyoU Extended writing: link the uses of nanoparticles to their properties. Extended writing: evaluate the use of nanoparticles in applications, eg sun cream. Research uses and properties of nanoparticles. https://www.youtube.com/watch?v=nYEmiQCr3JU
Nanoparticles, are smaller than fine particles (PM2.5), which have diameters between 100 and 2500 nm (1 x 10-7 m and 2.5 x 10-6 m). What is the size of a fine particle and which is smaller, nanoparticles or fine particles?
Coarse particles (PM10) have diameters between 1 x 10-5 m and 2.5 x 10-6 m. Coarse particles are often referred to as dust. What is the diameter of coarse particles, such as dust?
(MS) Students should be able to make order of magnitude calculations.

As the side of cube decreases by a factor of 10 the surface area to volume ratio increases by a factor of 10. What happens to the size of the surface area to volume ratio of a cube is you decrease the size of the sides by a factor or 10?
Nanoparticles may have properties different from those for the same materials in bulk because of their high surface area to volume ratio. It may also mean that smaller quantities are needed to be effective than for materials with normal particle sizes. Why are the properties of nanoparticles different from those for the same materials in bulk?
Students should be able to compare ?nano? dimensions to typical dimensions of atoms and molecules. How do nanoparticles compare in size to individual atoms?
Students should be able to calculate areas of triangles and rectangles, surface areas and volumes of cubes.

Nanoparticles have many applications in medicine, in electronics, in cosmetics and sun creams, as deodorants, and as catalysts. New applications for nanoparticulate materials are an important area of research. What are the main applications of nanoparticles?
Students should consider advantages and disadvantages of the applications of these nanoparticulate materials, but do not need to know specific examples or properties other than those specified. What are the advantages and disadvantages of using nanoparticles?
Students should be able to given appropriate information, evaluate the use of nanoparticles for a specified purpose

Investigate the effectiveness of nanoparticles in nappies. To prove that increasing mass affects how much water it can hold.
Students should be able to explain that there are possible risks associated with the use of nanoparticles.

Links To the Big Ideas
ForcesParticlesEnergyCells