Friday, 3 February 2023
Magnetic Field Strength
Thursday, 2 February 2023
Model of a cell
A cell contains several structures, including:
Nucleus - The cell's control centre, containing DNA and regulating cell activity.
Endoplasmic reticulum (ER) - A network of membranes involved in protein synthesis and lipid metabolism.
Golgi apparatus - A stack of flattened membranes that modify, sort, and package proteins and lipids for transport to other parts or outside the cell.
Mitochondria - The cell's powerhouse, responsible for producing energy through cellular respiration.
Lysosomes - Small, spherical structures that contain digestive enzymes and break down waste and cellular debris.
Vacuoles - Large, fluid-filled organelles that store materials such as water, salts, and pigments.
Microfilaments and Microtubules - Tiny protein fibres that help maintain cell shape and support the cellular movement.
Peroxisomes - Small organelles containing enzymes involved in metabolic processes, including the breakdown of fatty acids and detoxifying harmful substances.
Spinning a wire connected to a beam galvanometer
Tuesday, 31 January 2023
Eureka Can
Science should be taught as a series of problems to find solutions to. Giving the student everything takes the excitement out of science. Science is about students discovering how to do something with a bit of guidance. I give out lots of the wrong equipment and get the students to choose what is best.
Monday, 30 January 2023
Charles Law
It was the first time I had done Charles Law using a dried capillary tube and a bead of conc Sulfuric Acid to determine the volume against the temperature. The experiment took 3 hours, but I now know how to make it faster to fit into an hour lesson. Jacques Charles made a major contribution to the study of gases. In 1787, he discovered that gases have a linear relationship between their volume and temperature, provided the pressure remains constant. This is known as Charles's Law, which states that the volume of a gas is directly proportional to its temperature.
Sunday, 29 January 2023
Paraffin block puzzle
I confused many of the students with the paraffin block puzzle. The bottom is dark, the top light. Turn is round anyway, and the bottom is still dark. It kept the students amused for quite a while whilst they tried to work out what I had done to it.
Saturday, 28 January 2023
Wireless Geiger Counter
Doppler Rocket
Demonstrating the Doppler effect with the @pascoscientific Doppler Rocket: As the rocket moves away, students can hear the pitch drop (red s...
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Negative feedback is a difficult concept to try and get over so I tried using a balance board and the @pascoscientific smart cart strapped...
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We went to the Bett Show a few weeks ago and there we saw a model of a Liver. It had been knitted so we thought we would have a go. After ...
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#Physics Taking wind speed readings using the PASCO scientific wireless weather station. Grabbing some monthly data on the weather in t...