It’s crucial to go beyond textbooks and academic knowledge when teaching science to children. In order to better grasp what is being taught in class, students must examine and handle a variety of objects. Practical learning is what we call this. Because of the difficult language and complicated phrases that must be memorised, science may be boring for some children. It will pique your curiosity in learning the sciences and show you how engaging hands-on learning can make science! To give your pupils more hands-on practice, you might buy laboratory equipment malaysia.
Battery Eliminator
Any device that powers a circuit without the usage of batteries is referred to as a battery eliminator. A battery eliminator does exactly what its name implies: it gets rid of the requirement for batteries to power a circuit. It is an apparatus that supplies electricity to a circuit in place of batteries. Any device that powers electronic devices without the need for batteries, such as a DC power source, a 9V wall wart, etc.
Take the Nintendo Gameboy, for instance, which typically requires 4 AA batteries in order to operate. Since each AA battery has 1.5 volts, the 4 AA batteries total up to 6 volts DC. They add up because they are connected in series. It is 6 volts overall because of this. Imagine that we choose not to insert batteries into the battery slot. Instead, we use a DC power source to power it. We set the power supply’s voltage to 6VDC and properly connect it to the battery slot. So that the DC power supply’s positive terminal connects to the positive battery terminal. The negative connection of the power source connects to the battery’s negative terminal. Bypassing the necessity for us to power the Gameboy with batteries, the DC power source serves as a battery eliminator when we power the Gameboy in this manner. Any device that can power devices without the usage of batteries is what is referred to as a battery eliminator.
Magnetic Stirrer
Some magnetic stirrers include a heated plate for stirring, while others employ a revolving magnetic field to move a stir bar through liquid samples. This stir bar moves quickly and vigorously, fully agitating the samples. The magnetic field’s speed may be adjusted by the operator to suit the particular material being agitated. To avoid interfering with the magnetic field, these stirrers should only be used with glass or other non-metallic beakers.
The fluid is positioned inside a container together with a stir bar magnet. To attract the stir bar magnet, a different magnet is positioned beneath the container. Typically, a motor is attached to the bottom magnet, spinning it. The stir bar magnet rotates within the container if the magnets are close enough. You may customise your magnetic stirrer with hot plates to heat your samples while they are swirled, depending on the application. It is possible for you to mix a wide range of samples for various purposes with a hot plate stirrer.
