Welcome to SupaScience
KS3 Common Entrance
Science help and revision

Quizes   Science Dictionary   Help   Site Map

80 pages of notes, quizes and advice to help year 7 and year 8 pupils revise for the Common Entrance or School Science exams.

Multiple Choice Science TestsQuestions to test your knowledge
Great for revision
*New tests added: chemistry topics*
Over 600 multiple choice questions sorted by difficulty and subject


Click here for KS2 Primary SupaScienceTeeth - Plants - Mixtures - Forces .....and lots more!


Please take the time to let us know what you think of this site

Mike Curtis     April 2016

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16 Comments on "SupaScience: Common Entrance Science Revision"


Michael Curtis
2 months 1 day ago


Rachel Thomas
Rachel Thomas
2 months 27 days ago

Hi . Great site and love all the updates especially the quizzes but the Physics CE practise question paper actually shows all the answers as well as the answer paper . Biology and chemistry are fine . Thank you .

Michael Curtis
2 months 26 days ago

Thanks for your comments. All the pages are correct. I expect an old page is stuck in the cache and it should work as expected if loaded again.
Good luck with the C.E. exams!

3 months 3 days ago

you should make do it yourself links so we can move stuff around and figure it out ourself

Michael Curtis
3 months 3 days ago

Thanks for the suggestion. Give me an idea of the sort of stuff that could be moved around. mc

Michael Curtis
3 months 11 days ago

Heating sulphur in air:
If heated very gently sulphur will MELT. Melting is a physical change.
When heated more strongly sulphur will start to BURN with a pale blue flame and producing choking fumes of sulphur dioxide gas. Burning is a chemical change.

Word equation for the reaction that takes place when sulphur burns (combines with oxygen):

Sulphur + oxygen —>; sulphur dioxide

3 months 13 days ago

how do you make a cheek cell slide?

Michael Curtis
3 months 12 days ago

These are the instructions for preparing and viewing a microscope slide of some cheek cells:

1 Take a clean microscope slide
2 Rub a clean cotton bud around the inside of your mouth and then smear it across the middle of the slide.
3 Add one drop of water followed by a drop of methylene blue stain
(The stain is a special dye that helps the nucleus and membrane show up better)
4 Place a cover slip on the drop (at an angle so that there are no air bubbles)
5 Squash it down gently using a piece of blotting pape
6 Place the prepared slide on the microscope stage.
7 Adjust the light source so that it shines through the slide.
8 Focus by turning the focus knob so the lens AWAY from the slide

You will find more details, plus photographs, following this link:

Preparing a slide of some cheek cells

If you want more help, or a little more detail given, please ask

kind regards, Mike