Light Refraction
You can drag the path of light. Refraction is the bending of a wave caused by a change in its speed as it moves from one medium to another. This occurs because of the slow speed of light in dense … more
Heart Rate Counter
Pulse Blood vessels are elastic. When the heart contracts, the blood vessels dilate; when the heart relaxes, the vessels constrict. Hemoglobin in the blood absorbs particular light. Therefore, when light is applied to human tissue, the passage of light varies … more
Micro:bit Maqueen robot code collection
Evasive maneuver (using distance sensor) Marqueen avoids walls or obstacles it encounters during its progress(< 20 cm). Source code https://makecode.microbit.org/#pub:75200-46487-20442-48437 Line tracker Line tracker – source code https://makecode.microbit.org/#pub:25457-13297-31811-64902 Black barrier Black barrier – source code https://makecode.microbit.org/#pub:28206-29997-02800-36929 Wireless control Wireless control ... more
Galton Board (Binomial Distribution)
Galton Board The Galton board is a tool for visualizing the principles by which the binomial distribution is created. Early Galton boards were made with wooden poles and beads that rolled down. Francis Galton, who created the Galton board, is … more
Neutralization Reaction Model
Neutralization reaction The reaction of an acid and a base to form water is called a neutralization reaction. When an acid and a base react, hydrogen ions from the acid (H+) and hydroxide ions from the base (OH-) react in … more
Micro:bit Wireless DS18B20 (waterproof) Thermometer
You can use a Micro:bit as MBL by connecting a DS18B20 temperature sensor. If no sensor is connected, the Micro:bit built-in thermometer value is output. Thermal equilibrium experiment between hot and cold water The sensor connects to the P1 or … more
Micro:bit Wireless Maze
This is a game using the micro:bit’s 3-axis acceleration sensor. Updated 2023.10.27: Score recording function added. Parts list The parts list is at the bottom of the link below.
Wave Propagation
Reset Wave In science, a wave is a phenomenon in which energy is transmitted through a medium. It is the only energy that is transmitted through the wave. The medium only vibrates but does not actually move. Not all waves … more
State of matter
State of matter The material around us exists in three states (solid, liquid, gas) depending on temperature. Solids do not change shape and volume like ice, trees, and so on. The liquid has the property of flowing like water and … more
Micro:bit Wireless Built-in Thermometer
You can record the temperature changes with the Micro:bit’s built-in thermometer. Micro:bit only works with v2.00 or later products. Please use the Chrome browser if possible. It may not work in the in-app browser of social media (e.g. Facebook). It … more
Micro:bit Wireless Accelerometer
You can use the Micro:bit as an MBL acceleration sensor. This video is played without sound. Micro:bit only works with v2.00 or later products. Please use the Chrome browser if possible. It may not work in the in-app browser of … more
Faraday’s Law of Electromagnetic Induction
You can set the movement of the magnet as you wish. Observe the electromotive force generated depending on the position and speed of the magnet. Electromagnetic induction Moving the magnet around the inductor will change the inductor’s magnetic field, which … more