
-
Beatrice, 6, asks: where does electricity come from?
It comes mostly from lightning that we catch
It comes from energy sources that are harnessed so they can be used to power the world
It comes from the sun
It comes from power stations that create energy
-
Jacob, 7, asks: what is the oldest living thing that is still alive?
A clonal tree that’s called Pando
An ancient sea turtle living in the Pacific Ocean
A form of bacteria
A bristlecone pine tree living in the US
-
Alice, 10, asks: what happens when you go into a black hole?
You get spaghettified
You disintegrate into nothingness
You get crushed into a speck the size of a pinpoint
You enter a different universe on the other side
-
Jolie, 12, asks: do pandas eat people?
Yes, pandas are born killers
No, pandas mostly eat bamboo
No, pandas are strictly vegetarian
Yes, but only on special occasions
-
Milan, 6, asks: which number comes after a trillion? There are hundreds, thousands, millions, billions, trillions, but then what?
A squillion
A reptillion
A bazillion
A quadrillion
Solutions
1:B - Electricity begins with an energy source like fossil fuels or wind power or solar power. Big power stations catch the energy from these sources and turn it into electricity, which is then spread far and wide to power our toasters and our kettles., 2:C - The oldest living thing that is still alive is a form of bacteria scientists found inside salt crystals that is 250m years old! Other very old living organisms include the clonal tree Pando in Utah whose root system could be 80,000 years old, and a bristlecone pine tree that is 5,000 years old., 3:A - If you were to jump into a black hole, the gravity force would compress you while also stretching you, leaving you looking a little like strings of spaghetti., 4:B - Pandas mostly eat bamboo but sometimes other things like fruit, insects and vegetables. They need to eat up to 38kg of bamboo a day to meet their energy needs!, 5:D - A quadrillion comes after a trillion. The prefixes bi-, tri-, quad- come from Latin and mean two, three, four. So next is a quintillion (quint- from the Latin for five). A quadrillion is written 1,000,000,000,000,000.
Scores
-
5 and above.
-
4 and above.
-
3 and above.
-
2 and above.
-
0 and above.
-
1 and above.
Molly Oldfield hosts Everything Under the Sun, a weekly podcast answering children’s questions, out now as a book.
Does your child have a question? Submit one here