Bees sting other animals, including humans, when they think there might be a threat to their hive. But Evie, age 8, wonders if bees ever accidentally sting other bees.
Dreams are like a forest walkway: there’s no clear sense of direction and you can easily get lost.
ollierb/flickr
Niamh, age 7, wants to know why we have scary dreams. But after 200 years of study, dreams are still very much a mystery.
Lasers being shone from the European Southern Observatory’s Very Large Telescope in Chile.
These lasers help remove the twinkles in the night sky and help astronomers see stars clearer on Earth than ever before.
F. Kamphues/ESO
Jake Clark, University of Southern Queensland; Belinda Nicholson, University of Southern Queensland; Brad Carter, University of Southern Queensland, and Jonti Horner, University of Southern Queensland
How exactly do the stars twinkle in the night sky? As it turns out, the answer is full of hot air… and cold air.
Rainbows get their round shape from a process called reflection.
Flickr/Luigi Mengato
Breathing in through your nose has many medical benefits over mouth breathing. As usual, be wary of misinformation and bias when looking up health on the internet.
Big sewer pipes take all sewage to a place where it is treated. This place is called a sewage treatment plant.
Flickr/Dean Hochman
The way humans make an ‘ssss’ noise is different to the way a snake does it. We put our tongue behind our teeth when we hiss, but for a snake the tongue isn’t involved at all in making sounds.
The Sun is currently middle-aged, having celebrated its 4,568,000,000th birthday at some point in the last million years.
Flickr/ChopWood CarryWater
What caused the Big Bang is still a mystery. And that’s just one of the many unanswered questions, in spite of everything we do know about the birth of the Universe.
Watch out! The gingerbread zombies are coming!
v1ctory_1s_m1ne/flickr
Taste dictates most food choices, but there’s more to it than just the taste buds on your tongue.
The edges of your lost tooth are sharp because when the root of the baby tooth is being eaten away, it tends to start from the middle of the root. That leaves a sharp edge behind when the tooth breaks off.
Flickr/Stephanie Young
Nicholas, aged 6, was watching TV one day when his tooth fell out. He noticed that the bottom edge of the tooth was very spiky. Now he wants to know why.
Once the coat around the seed is moistened, the embryo cells expand and burst out in a process called germination.
shutterstock/NUM LPPHOTO
A seed contains nearly everything a tree needs to get growing. Just add a dash of water, a bit of warmth and the right location, and you’ll be seeing green in no time.
Singing helps us remember information.
Flickr/Martin Abegglen
Because of the way our brains work, we can remember songs and rhymes much more easily than just words or letters. The ABC song teaches kids the basics of the English language.
A shark’s nose is chemosensory only, and it doesn’t join up to the back of the throat like ours does.
Flickr/Leszek Leszczynski