Methods of Separation in Everyday Life — Science STD 6 — Question

Which are two gases involved in photosynthesis? How?

How can you determine north and south poles of a bar magnet?

Are senses reliable for accurate measurement?

How are cells arranged in a torch— in parallel or in series?

Name two aquatic animals which have no gills.

Solve the riddles: I’m the planet that everyone calls “Red,” But really my soil is rust-colored instead. Look up and you may spot me in the sky, I’m the orange- colored dot, way up high. Which planet am I?

What is the percentage of oxygen in the air?

Name the country which invented cotton clothing.

Name the two ingredients involved in cooking of rice.

Water kept in sunlight gets heat from sun and is evaporated. But how does water kept under the shade of a tree also get evaporated? Explain.