30 March 2025

Calculating Depreciation


 ​In Business, depreciation refers to the gradual decrease in value of an asset over time due to factors like wear and tear or obsolescence, and it's a key accounting concept used to allocate the cost of an asset over its useful life. 

29 March 2025

How a hard disk works




 Taking a hard disk to bits so that the students could see how a hard disk works.

28 March 2025

Displacement reactions

Using displacement reactions, comparing the reactivities of three different metals with their sulfates—Copper, Iron, and Zinc—to find out which is the most reactive and which is the least.

27 March 2025

Gay Lussac's Law


 Constant volume: Increasing the Temperature increases the pressureGay Lussac's Law. It is so much easier and more accurate to use a @pascoscientific wireless pressure sensor than a Bordon Gauge.

26 March 2025

Cards and Probability

Many questions in Maths Papers look at the probability of selecting a card but many students don't play cards except perhaps on a computer games and don't know the names, values or suits.



 

25 March 2025

The Laplace rail demonstration


The Laplace rail demonstration is a piece of scientific equipment used to demonstrate the force exerted on a current-carrying conductor in a magnetic field, illustrating the motor effect and fundamental electromagnetic principles. 

24 March 2025

Spirogyra


 Life is beginning in the pond and it is a good time to look at spirogyra and get the students to try and record what they actually see rather than what they think they see.

Thinking Clearly About Ions, Charges, and the Periodic Table (Without the Panic)

  Thinking Clearly About Ions, Charges, and the Periodic Table (Without the Panic) If there’s one topic that quietly causes confusion in GCS...