Assessment Criteria - Science (Chemistry) - Year 8

KS3 Level

Chemical Energy

Periodic table

Earth Climate

Types of Reaction

Earth structure

Projected KS4 Grades

  1.  

Correctly explain in detail what the energy profile graphs show.

Compare the two groups and explain the similarities and differences between them.

Describe and explain the data used

Balanced symbol equations, showing the exact number of atoms in your diagrams.

Explain the conditions required for the formation for each type of rock and link this to the properties of different examples of rock.

9

5

Draw an energy profile diagram for endothermic and exothermic reactions AND describe what is happening in terms of bond energy in an endothermic and exothermic reaction.

Explain the reactivity of the elements present in group 1 and group 7 and provide a detailed explanation to the reactivity.

Research and find any data which could be used to show the impact of humans on climate change

Written word equations for each of the reactions with no errors.

Explained in detail how metamorphic rock is formed and how this affects the appearance of the rock

8

4

Explain what happens in these reactions with reference to energy and you can use your knowledge to identify examples of each

Explain the reactivity of the elements present in group 1 and group 7 and provide a simple explanation.

Explain the science behind global warming
Explain the consequences of climate change

Explain what would happen in the reaction between iron and zinc sulphate

Explain in detail how sedimentary rock is formed and how this affects the appearance of the rock

7

3

Explain the science behind what is happening in your two examples.

Draw the atomic structure for 3 of the elements
Explain how this links to its position in the periodic table

Explain how humans can reduce greenhouse gases
Explain how levels of pollution could be reduced

Explain what happens in the reaction between iron and Copper Sulphate

Explain in detail how igneous rock is formed and how this affects the appearance of the rock

6

2

Give an example of how an endothermic and exothermic reactions can be used

Calculate the number of protons, electrons and neutrons for each element used

Describe what global warming is
Describe why levels of greenhouse gases are increasing

Described how the reactivity series is organised

Describe how rocks might get worn away and how bits of rock get moved from one place to another.

5

1

Describe how to investigate whether a reaction is endothermic or exothermic

Describe what an element is

Describe what happens to the carbon in each key process
Describe what we mean by the term carbon sink

Described what will happen in the reaction between iron and Copper Sulphate

Briefly describe how each type of rock is formed.

4

WT+

Describe what happens in an endothermic and exothermic reaction

Identify the chemical symbol for each of the elements used.

State the main gases that contribute to global warming
State the 5 processes involved in the carbon cycle

Identified less reactive or more reactive metals in the examples

Identify where magma, lava, igneous, sedimentary and metamorphic rock are formed

3  

WT

Define the terms endothermic and exothermic

Draw your design and LABEL each colour with the element you have used to achieve this colour.

Identify 2 ways that humans can improve climate change

Drawn a labelled diagram to show what happens to each of the atoms.

Identify the location of rain, sea, sun, volcano

WT-

1

Each KS3 level can be subdivided into:-

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