Download Y9 Chemistry 3 - Stewards Academy

Stewards Academy
ASSESSMENT FEEDBACK
Science Department
Green
Blue
Yellow Plus/ Yellow
Attainment
Band :
White
Knowledge and Understanding
Explains the meaning of subscripts within a formula and multipliers before a formula in a balanced equation.
Shows how the relative formula masses of reactants are equal to the relative formula masses of products.
Explains observed changes in mass in non-enclosed systems and explain the changes in terms of the particle model.
Represents the range of a set of measurements about a mean as a measure of uncertainty.
Calculates the mass of a given number of moles.
Calculates the mass of a given reactant or product.
Changes the subject of a mathematical equation.
Explains the effect of a limiting quantity of a reactant on the amount of products it is possible to obtain, using moles or grams.
Relates concentration in mol/dm3 to mass and volume.
Explains how the concentration of a solution in mol/dm3 is related to the mass of the solute and the volume of the solution.
Calculates the percentage yield from the actual yield and the theoretical yield.
Explains why a particular reaction pathway is chosen to produce a product given the atom economy, yield, rate, equilibrium position and
usefulness of by-products.
Calculates volumes of gases from a balanced equation and a given volume of a reactant or product.
Explains how to balance equations in terms of numbers of atoms on both sides of the equation.
Calculates the sum of the relative formula masses of reactants and products.
Explains why there appears to be a mass change when metal carbonates are heated or metals are heated in oxygen.
Represents a distribution of results and make estimates of uncertainty.
Calculates the number of moles in a given mass.
Calculates the masses of reactants and products from balanced symbol equations.
Balances an equation given the masses of reactants and products.
Describes the reactant that is used up first in a reaction as the limiting reactant.
Calculates the mass of solute in a solution.
Calculates the concentrations in titrations in mol/dm3 and in g/dm3.
Calculate the theoretical amount of products from the amounts of reactants.
Calculates the atom economy of a reaction to form a desired product.
Calculates the volume of a gas at rtp from its mass and relative formula mass.
States the law of the conservation of mass.
Is able to calculate a relative formula mass from the sum of the relative atomic masses.
Explains that when there is a mass change in a reaction it may be because a gas is being given off.
Describes that whenever a measurement is made there is always a degree of uncertainty about the result.
Describes the measurement of amounts of substance in moles.
Calculates the masses of substances in a balanced symbol equation.
Converts masses in grams to amounts in moles.
Recognises that when a reaction has stopped one of the reactants has been used up.
Relates mass, volume and concentration.
Describes how to carry out titrations.
Identifies the balanced equation needed for calculating yields.
Identifies the balanced equation for a reaction.
Explains that the same amount of any gas (in moles) occupies the same volume at room temperature and pressure (rtp).
Some elements of the above have been achieved
White
Carrying out an
experiment
Evaluation
Numeracy
Solving
problems
Year 9 Separate Science (Chemistry)
Attainment Band
Green
Blue
Skills
Yellow /
Yellow Plus
With
support
With occasional
support
With little
support
Independently
Ability to carry out experiments appropriately having due regard for the
correct manipulation of apparatus, the accuracy of measurements and
health and safety considerations.
With
support
With occasional
support
With little
support
Independently
Ability to correctly follow a scientific method
With
support
With occasional
support
With little
support
Independently
With
support
With occasional
support
With little
support
Independently
With
support
With occasional
support
With little
support
Independently
With
support
With occasional
support
With little
support
Independently
Ability to substitute numerical values into algebraic equations using
appropriate units for physical quantities.
With
support
With
support
With occasional
support
With occasional
support
With little
support
With little
support
Independently
Ability to interconvert units.
Independently
Ability to use fractions, ratios and percentages
With
support
With occasional
support
With little
support
Independently
Ability to use prefixes and powers of 10 for orders of magnitude (e.g.
tera, giga, mega, kilo, centi, micro and nano).
With
support
With occasional
support
With little
support
Independently
Ability to use the BUSBY strategy to answer questions from the topic.
With
support
With occasional
support
With little
support
Independently
Ability to use a variety of models such as representational, spatial,
descriptive, computational and mathematical to solve problems, make
predictions and to develop scientific explanations and understanding of
familiar and unfamiliar facts.
Ability to evaluate data in terms of accuracy, precision, repeatability and
reproducibility and identify potential sources of random and systematic
error.
Ability to evaluate methods and suggest possible improvements and
further investigations
Ability to visualise and represent 2D and 3D forms, including 2D
representations of 3D object.