This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Subject Specific Vocabulary Interesting Books Sticky Knowledge
about Reversible and
Irreversible changessolubility Is a chemical property referring to the
ability for a given substance, the
solute, to dissolve in a solvent.
Irreversible changes, like burning,
cannot be undone. Reversible
changes, like melting and
dissolving, can be changed
back again.
conductivity Conductivity defines a material's ability
to conduct electricity.
transparency In general, transparency is the quality
of being easily seen through.
thermalevaporation
Something that is thermal is hot, retains heat, or has a warming effect.Evaporation is the process of a substance in a liquid state changing to a gaseous state due to an increase in temperature and/or pressure.
Mixtures can be separated out
by methods like filtering and
evaporating. A change is called
irreversible if it cannot be
changed back again.Important facts to know by the
end of the reversible and irreversible changes topic:
dissolve To dissolve is defined as to become
broken up or absorbed by something
or to disappear into something else.
Examples of reversible changes:
Melting is when a solid converts
into a liquid after heating. An
example of melting is turning ice
into water. Freezing is when a
liquid converts into a solid.
• Know what a reversible change means.
• Know what an irreversible change means.
• Give examples of reversible and irreversible changes.
• Know that some materials will dissolve in liquid to form a solution, and describe how to recover a substance from a solution.
• Use knowledge of solids, liquids and gases to decide how mixtures might be separated, including through filtering, sieving and evaporating
bicarbonate of soda
A white water-soluble powder, used
chiefly as an antacid, a fire
extinguisher, and a leavening agent in
baking.
thermal Something that is thermal is hot, retains
heat, or has a warming effect. A cooked egg cannot be
Year 5 Textiles(Combining different fabric shapes)
Knowledge MatSUBJECT SPECIFIC VOCABULARY
Mock up quick 3D modelling using easy to work and cheaper materials and temporary joints. Useful for checking proportions and scale.
Pattern or template
a shape drawn to exact shape and size, used to assist in cutting out.
Seam allowance
extra fabric allowed for joining tog ether 15mm for domestic patterns.
Specification describes what a product has to do.
Tacking large running stitches to hold pieces of fabric together temporarily.
Working drawing
detailed drawing contains all information needed to make a product but is updated as changes are made.
Fasteners Fasteners have a very functional role in a garment. They help the opening of fabrics to close exactly and correctly.
Stiches One complete movement of a threaded needle through a fabric or material such as to leave behind it a single loop or portion of thread, as in sewing,
STICKY VOCABULARY
design/designing When you plan what something will look like. You will need to think about what materials you will use.
design criteria The precise checklist that a project must achieve in order to be successful.
make/making Use a variety of toolsand finishing techniques to create a designed product.
evaluating Once you have finished making your product, you must discuss how well it works in relation to the purpose and design criteria.
purpose The purpose is why your product has been made. Who would use your product?
product The item that you are going to design, make and evaluate.