1273 questions and answers in this section
Explain why snow is sometimes noisy under our footsteps?

Explain why snow is sometimes noisy under our footsteps?

Snow can sometimes produce a distinctive sound when walked upon. Several scientific explanations have been put forward to try to understand this phenomenon. One theory...

Read full answer

Explain why heat can make the air lighter and cause upward currents?

Explain why heat can make the air lighter and cause upward currents?

When air is heated, its individual molecules absorb thermal energy, increasing their speed and agitation. This increased agitation causes the air to expand, as the...

Read full answer

Explain why some caves resonate like cathedrals?

Explain why some caves resonate like cathedrals?

The shape and size of a cave can play an essential role in its ability to resonate like a cathedral. Caves that resonate most strongly...

Read full answer

Explain why air bubbles form in boiling water.

Explain why air bubbles form in boiling water.

When water is brought to a boil, air bubbles form in the liquid. This phenomenon is due to the reduction of gas solubility in water...

Read full answer

Explain why water is transparent while ice is opaque?

Explain why water is transparent while ice is opaque?

Water is a molecule composed of one oxygen atom linked to two hydrogen atoms, forming a V-shaped structure. This molecular asymmetry creates hydrogen bonds between...

Read full answer

Explain why rubber bounces back after being compressed?

Explain why rubber bounces back after being compressed?

Rubber is a natural polymer composed mainly of natural rubber molecules, also called isoprene. These molecules have a linear molecular structure with carbon-carbon double bonds...

Read full answer

Explain why a metal spoon becomes hot when it is left in a hot liquid.

Explain why a metal spoon becomes hot when it is left in a hot liquid.

The thermal conductivity of a metal is an important physical property that influences its ability to absorb heat. Metals are good conductors of heat due...

Read full answer

Explain why some plant species are at risk of extinction after a fire?

Explain why some plant species are at risk of extinction after a fire?

Fires can have a devastating impact on the habitats of plant species. They destroy existing vegetation structures, alter soil composition by burning organic matter, and...

Read full answer

Explain why does the intensity of starlight vary?

Explain why does the intensity of starlight vary?

Stars can vary in brightness due to their rotation on themselves. This phenomenon is observed when certain parts of the star's surface are brighter than...

Read full answer

Explain why some plants explode to disperse their seeds?

Explain why some plants explode to disperse their seeds?

Plants that use explosive seed dispersal have developed a clever mechanism to propel their seeds over a distance. This mechanism typically relies on capsules or...

Read full answer

April 20, 2025 : We have reached 240M+ (millions) GIFs viewed on Giphy (check here!). Use our GIFs on WhatsApp or elsewhere. We are gradually offering them on Tenor. This may take a little time.