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Chemistry
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Melting points KS3
Aimed at mixed ability year 8 class
Starter: which chocolate do you think is the most pure?
Main: explain what is meant by pure
carry out a practical to melt different chocolates to work out which is most pure and how we know that
plenary: questions to evaluate the practical
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Solubility at different temperatures KS3
Aimed at mixed ability year 8 class
Starter: Write a hypothesis for what students think will happen to the amount of a solute that can dissolve as temperature increases
Main: Practical, have different water baths, see how much sodium bicarbonate dissolves at each temperature
Record results on worksheet
Differentiated worksheet higher or lower ability. Once completed practical evaluation and conclusion on each practical. Different tasks for higher and lower ability students
Bundle
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Separation techniques KS3
Bundle of lessons for year 8
L1 - elements compounds mixtures
L2 - Dissolving
L3 - Solubility
L4 & 5 - filtering and evaporating
L6 - Melting points
L7 - Simple distillation
L8 - Fractional distillation
L9 - Chromatography
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C1.2 Separating mixtures
Aimed at a mixed ability year 9 class
starter:
Differentiated starter task from previous learning. Bronze = level 4 silver – level 6 gold = level 8 (to be gaining a level 8 answer needs to be really detailed) students have done this at KS3
Go through and green pen answers
Main
Talk about safety for the practical, demo practical with distillation to get pure water
Students carry out rock salt practical to get salt
Answer questions when done, extension question available also
Plenary
5 mins
Identify the three processes we have learnt about today
Homework - differentiated
Summary sheet on separation techniques
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C1.1 History of the atom
Aimed at a mixed ability year 9 class
Starter Activity
Draw and label the atom – discuss that its changed over time
Main –
Watch video of history of the atom – try and list the scientists and their discoveries
Use textbooks or ipads to research the history of the atom and fill in the timeline. Differentiated version, blank version for HA students and LA version with question prompts
Extension fill in the gaps sheet
Plenary
Draw the current atom from memory and label it
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C1. 8 electronic structures
Aimed at a mixed ability year 9 class
Starter Activity
Exam question starter – go through and green pen
Main –
Recap where to find the number of electrons an atom has, go through electronic structure rules. Do a few examples on the board
Two worksheets – first worksheet students need to find out the number of protons, neutrons and electrons each element has, the second they need to draw the electronic structures
Extension: explain why sodium and lithium might react in a similar way
Write a step by step guide for somebody to explain how you draw electronic structures
Plenary
Exam question plenary – spot mistakes in the electronic structures
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Mixtures
Suitable for KS3
Includes
Recall starter
Element mixture or compound particle diagrams and task
Mini demo or practical to show how we can separate mixtures
Written task to explain how properties can help us separate mixture
Peer assessment grid
recall plenary
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Solubility KS3
Suitable for year 7/8
Recall starter
Followed by explaination and practice of the new keywords solute/solvent/solution
Questions and tasks provided with answers
mini practical to do with solubility, does it dissolve or not?
Questions for follow up to the practical
Recall plenary
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C3 Quantitative chemistry tutoring
A tutoring powerpoint I used does not include percentage yield.
Comes with a key question document and exam questions.
All answers to powerpoint included as animations or in the notes below
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KS3 investigating solubility
Lesson includes a practical to investigate how temperature affects solubility.
Comes with an optional work sheet.