Dough rises because yeast or baking agents release gases that expand when heated. It’s a scientific question because it involves chemical reactions, temperature effects and gas formation—concepts that can be observed, tested and explained using science. class 8 science chapter 1 ...
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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 ...
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 ...
The Sun’s movement causes day and night, while the Moon orbits Earth, changing phases. Their positions together influence tides, eclipses and calendars, showing how both movements are deeply connected to time and nature. class 8 science chapter 1 exploring the investigative ...
Experiments and observations help test ideas and uncover truths. They provide real evidence to support or challenge hypotheses. This hands-on approach strengthens understanding and allows scientists to draw accurate conclusions based on what they observe and measure. Class 8 Science Curiosity ...