Science questions

Another interesting thing about sharks is that some are oviparous they lay eggswhile others give birth to live young. When it freezes, the molecules line up in such a way that the ice takes up more space.

Science quiz questions and answers for class 10

At that speed the effect is minuscule, but ramp up the velocity and the effect means that one day humans might travel thousands of years into the future. The embryo is surrounded by soft, starchy material that contains water. The former, first discovered in , acts as an invisible glue, binding galaxies and galaxy clusters together. Lightning can also form inside the cloud, moving between the positively and negatively charged areas. Even light, which travels so quickly that we cannot even see it move, takes eight minutes to get from the sun to earth. We see the stars through the atmosphere. What is a black hole? A popcorn kernel is actually a seed. Why do boats float? As the green disappears, the other colors begin to emerge. In , Don Walsh and Jacques Piccard travelled seven miles down, to the deepest part of the ocean, in search of answers. Animal studies and advances in brain imaging have led us to a more complex understanding that suggests dreaming could play a role in memory, learning and emotions. Time travellers already walk among us. A fall of two or more floors, however, can seriously injure a cat. A black hole has a strong gravitational pull that sucks in everything nearby — even light.

And yet, despite their fundamental importance to our everyday lives, the primes remain an enigma. Look for the moon in the sky today!

Funny science questions

A black hole is an area in space where matter what everything is made of has collapsed in on itself. Many birds fly south in the winter. How does a plane takeoff and fly? Cats owe some of their nine lives to their unique skeletal structure. Except that general relativity and quantum physics have never been the happiest of bedfellows — for decades they have withstood all attempts to unify them. Why don't the oceans freeze? Oceans don't freeze solid for because they contain a lot of water, which is constantly circulating around the world. A steel bar dropped into water sinks, but a huge boat made of steel floats. The fact you can shop safely on the internet is thanks to prime numbers — those digits that can only be divided by themselves and one. Delight their curiosity with these answers to top science questions kids ask.

You can often see a rainbow after it rains. Sharks are a type of fish.

Science and technology quiz questions and answers 2018

And since many diseases, such as diabetes and cancer, are diseases of ageing, treating ageing itself could be the key. The moon is the brightest object in the night sky. You can often see a rainbow after it rains. The bottom of the thundercloud has a negative charge, and the top has a positive charge. As air rushes in to fill the pockets, the ball is pushed in different directions. But how did the basic chemicals present on early Earth spontaneously arrange themselves into something resembling life? Astronomers are closing in on the true identities of these unseen interlopers. How much does the earth weigh? Why do birds fly south in the winter? How did we get DNA? Other times we see only part of the moon a crescent. Why is the sky blue? Why do birds fly south for the winter?

Why do I have brown eyes? The hope is that these solutions can meet our energy needs.

general science quiz 2

Different colors bend at different angles--red bends the least and violet the most.

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Top 50 General Science GK Questions