Burping (or, as some people call it, belching) is a normal part of being a human being. Everybody does it. That’s because when we eat and drink (especially if we’re talking at the same time!) some of the air that we breathe gets swallowed down to our stomachs. And then, that air has to find its way back out of our bodies. It either gets pushed back up to our mouths and comes out as a burp, or it gets pushed down to our bottoms and comes out as a fart.
But my girls want to know if humans are the only animals that burp. What about cats and dogs – can they burp too?
Time is something we all use throughout our lives, although many of us probably don’t think about how it work – we just get on with it!
Us humans divide time up into small chunks, like hours and minutes and seconds; or into bigger chunks, like days, weeks, months and years. And we measure time by looking at clocks or watches or calendars.
Animals and plants and other creatures also measure time but they don’t use clocks – they rely on the amount of light to tell if it’s day or night, and they sense more gradual changes in the seasons.
Time-travel, or the ability to move backwards or forwards through time, is an idea that pops up in stories and films. But could it actually happen?
My daughters love investigating things: from hunting for worms on rainy days or turning over rocks to find beetles, to pouring water between containers, and collecting leaves, flowers, conkers and pine cones! They are great at asking questions about the world around them and trying to think of creative ways to test out answers.
We’ve talked about how to be a scientist but they want to know how science works. What do scientists do when they are doing science? It’s time to find out about something called ‘the scientific method’…
Salt and pepper are seasonings that I sometimes use when I am cooking to make some types of foods taste better. I keep them in special plastic pots with twisty tops that grind the salt or pepper into a fine powder that can be used easily to flavour our food. But my daughters want to know why the salt pot has a lid, when the pepper pot does not?
My 8-year-old bites her fingernails. (She used to bite her toenails too – but we’ve just about trained her out of that yucky habit!) She wants to know what nails are made of and what they are for. So let’s find out more about these parts of the body – and why you probably shouldn’t bite them…!
My 3-year-old has got a bit of a suntan this Summer. The sunshine has made the hairs on her arms and legs turn white-blonde and they are more noticeable now that her skin has a more golden colour. She wants to know why she is furry and what are body hairs for?
My 3-year-old has been wondering where the cliff is – the one at the edge of the world. And she wants to know, if someone fell off it would they go floating out into Space…?
She’s not the first person to ask this question. People throughout history have wondered where the edge of the world might be and what would happen if you went there. Lots of explorers and scientists set out to measure the size and shape of the Earth and watched the stars and the Moon, and here’s what they discovered about the planet we call home…