The heating effect of electric current is used in appliances like heaters, irons, toasters and geysers. When electricity flows through a resistor, it produces heat, which helps in cooking, warming rooms and pressing clothes. Class 8 Science Curiosity Grade 8 Chapter ...
Discussion Forum Latest Questions
Zooming into materials shows how particles behave. It helps us understand how air pressure affects particle movement and how heat increases energy, causing boiling. These microscopic views explain changes we see, like water turning into steam. class 8 science chapter 1 ...
Elements are pure substances made of one type of atom, like oxygen or iron. Compounds are substances formed when two or more elements chemically combine, like water or carbon dioxide. Compounds have different properties than their individual elements. Class 8 Science ...
Moon phases depend on the relative positions of the Earth, Moon and Sun. As the Moon orbits Earth, the amount of its lit side that we see changes, creating phases like new moon, crescent, half and full moon. Class 8 NCERT ...
Earth’s distance from the Sun keeps temperatures mild—warm enough to prevent freezing and cool enough to avoid boiling. This balance lets water remain mostly in liquid form, which is essential for supporting life on Earth. Class 8 Science Curiosity Grade 8 ...