Yes organisms like amoeba, paramecium and mold may sometimes be seen as tiny spots or colonies. Ants or lice are the smallest creatures commonly visible without using any instruments. Class 8 Science Curiosity Grade 8 Chapter 2 The Invisible Living World ...
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The word “lens” comes from the Latin word for lentil. This is because the first lenses were shaped like lentil seeds—small, curved and rounded—ideal for bending light to magnify objects. Class 8 Science Curiosity Chapter 2 The Invisible Living World: Beyond ...
Cheek cells are round or irregular, while onion cells are rectangular. Cheek cells lack a cell wall and chloroplasts, but onion cells have both, showing key plant vs. animal cell differences. Class 8 Science Curiosity Chapter 2 The Invisible Living World: ...
The phrase means science needs both a strong base and imagination. “Roots” stand for solid knowledge and “soaring ideas” for creativity and discovery. Together, they help students grow into thoughtful, curious and capable scientific thinkers. Class 8 Science Curiosity Grade 8 ...
When light passes through a curved mirror or lens, it bends or reflects differently, focusing or spreading the rays. This bending helps form magnified, reduced or focused images used in spectacles, microscopes and cameras. Class 8 Science Curiosity Chapter 1 Exploring ...