6172RB Science a STEM approach Year 2 low res watermark

Chemical sciences
LIVING IN A MATERIAL WORLD
Lesson 3
Teacher notes
Science inquiry focus:
What happens when materials are combined? Why are
materials combined?
Science Inquiry Skills:
• Questioning and predicting QP
• Planning and conducting PC
• Processing and analysing data and information PA
• Evaluating E
• Communicating C
Science as a Human Endeavour:
• Students observe components in objects, ask questions
about and describe properties of materials.
• Students understand that science is used in daily life, such as
when combining materials to construct objects.
Technology/Engineering/Mathematics links:
• exploring a PowerPoint presentation as a class
• exploring the characteristics and properties of materials that
are used for a raincoat
• drawing a design for a house and selecting suitable
materials based on their properties
Background information
• A number of different materials may be combined to make
different products. The different materials are chosen
because of the properties that make them most suitable
for their use. For example, a window may be constructed
using glass with wooden or aluminium frames. A toy car
may be made from plastic, metal and rubber—with each of
these materials being used for a particular purpose. Some
properties of materials are more important than others.
• Composition of objects in the pictures on page 51:
Windows are a combination of metal/aluminium, wood
and glass; the jacket is made from nylon or leather outer
fabric and has a metal or plastic zip with fur fabric inside;
the car has a metal body, glass windows and lights, rubber
tyres, metal hubcaps; the cardigan is wool, with plastic
buttons and cotton thread.
Assessment focus:
• Use the house design as
a formative assessment of
students’ understanding of how
materials can be combined and
what the purpose is.
• Observe the final presentation
to gauge students’ ability to
articulate their understanding.
Resources
• Digital copy of page 51
• Video—The story of Charles
Mackintosh – he invented
rainwear! at
• Alternative Charles
Macintosh website
• A3 card and drawing
materials
• Selection of fabrics and
materials
© R.I.C. Publications
Low resolution display copy
R.I.C. Publications® – www.ricpublications.com.au 978-1-925431-95-7 YEAR Science:
2 A STEM APPROACH 49