We humans are linked by evolution to those early biological molecules.. Perhaps not. Astronomers have been scouring the universe for places where water worlds might have given rise to life, from Europa and Mars in our solar system to planets many light years away.
Radio telescopes have been eavesdropping on the heavens and astronomers are now able to scan the atmospheres of alien worlds for oxygen and water. We do, however, have bigger brains than most animals — not the biggest, but packed with three times as many neurons as a gorilla 86 billion to be exact.
A lot of the things we once thought distinguishing about us — language, tool-use, recognising yourself in the mirror — are seen in other animals. We spend around a third of our lives sleeping. But scientists are still searching for a complete explanation of why we sleep and dream. When they meet, both disappear in a flash of energy. Our best theories suggest that the big bang created equal amounts of the two, meaning all matter should have since encountered its antimatter counterpart, scuppering them both and leaving the universe awash with only energy.
Our universe is a very unlikely place. Alter some of its settings even slightly and life as we know it becomes impossible. Now we have to put all that carbon back, or risk the consequences of a warming climate. But how do we do it? One idea is to bury it in old oil and gas fields. Another is to hide it away at the bottom of the sea.
Our nearest star offers more than one possible solution. Another idea is to use the energy in sunlight to split water into its component parts: oxygen, and hydrogen, which could provide a clean fuel for cars of the future. 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.
In the bizarre reality of the quantum world, particles can be in two places at once. Time goes by, or so it seems. It could be an illusion, or we might need to rescue the flow of time by meddling with our concept of space. The universe might go awry if not for the familiar three dimensions, but theories of everything say there should be more.
What are we missing? The Casimir effect suggests that the vacuum is fizzling with ephemeral particles. Is it real?
And can we harness this energy concealed in empty space? Glass is a weird kind of solid liquid — and how it comes to be like that defies all explanation. Learn more about the phases of the moon! Look for the moon in the sky today! If the moon is waning appearing smaller each night look for it in the morning, after sunrise. If the moon is waxing appearing bigger each night look for it in the late afternoon or evening, before sunset.
Track the phases of the moon with weather forecast station. Many birds fly south in the winter. Birds that eat nectar or insects will not be able to find food in areas that have cold winters. Birds that migrate usually leave at about the same time each year and fly back home at around the same time each spring! How do they know when to come back to their homes? Some kinds of birds might fly very long distances, like from Canada down to Central America, while other kinds of birds only fly across a few states.
It can take the flocks weeks or even months to get to their winter home in the south, depending on how far they have to go and how fast they fly. Explore the world of bird-watching with a golden guide birds book and Celestron 10 x 50 binoculars.
Browse some of our top-selling science kits for kids of all ages. Explore force and motion with a physics lab experiment , make a DIY battery with our potato battery kit , study alternative energy with a solar power experiment , learn about acids-base reactions with a bath bomb science kit , observe the microscopic world around you with a home microscope , and explore your backyard with rockhound kits.
After you finish this article, we invite you to read other articles to assist you in teaching science at home on the Homeschool Hub, which consists of over free science articles!
Home Science Tools offers a wide variety of science products and kits. Find affordable beakers, dissection supplies, chemicals, microscopes, and everything else you need to teach science for all ages! Tasks such as pinching require tiny muscles in the hand to be strengthened.
These small muscles often strengthen after larger muscles, those that What Do Archeologists Do? Anthropologists and archeologists study the origin, development, and behavior of A DIY science lab at home is a wonderful way to foster science curiosity — creating that desire to learn and experience science in your kiddos!
Building a science lab at home can be a bit of an intimidating thought, though. Do you have a deep love for animals, a deep concern for the care of animals?
Maybe you are considering a career as a zookeeper. This article will provide information about the requirements to become a zookeeper, what the job entails, and the steps you can take to Science experiments are one of the most fun things you will get to do in your homeschool! I've put together some really fun and easy science experiments for you and your family to do this year Why is the sky blue?
The earth is surrounded by an atmosphere. How much does the earth weigh? To put things in perspective: One male African bush elephant weighs 13, pounds. One million elephants would weigh 13,,, 13 trillion pounds. Their voyage pushed the boundaries of human endeavour but gave them only a glimpse of life on the seafloor.
But on such scales quantum physics probably has something to say too. Except that general relativity and quantum physics have never been the happiest of bedfellows — for decades they have withstood all attempts to unify them. Our knowledge of what causes us to age — and what allows some animals to live longer than others — is expanding rapidly. And since many diseases, such as diabetes and cancer, are diseases of ageing, treating ageing itself could be the key. The number of people on our planet has doubled to more than 7 billion since the s and it is expected that by there will be at least 9 billion of us.
Where are we all going to live and how are we going to make enough food and fuel for our ever-growing population?
Maybe we can ship everyone off to Mars or start building apartment blocks underground. We could even start feeding ourselves with lab-grown meat.
These may sound like sci-fi solutions, but we might have to start taking them more seriously. Time travellers already walk among us.
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. Nature seems to be less fond of people going the other way and returning to the past, however some physicists have concocted an elaborate blueprint for a way to do it using wormholes and spaceships. The 20 big questions in science.
From the nature of the universe that's if there is only one to the purpose of dreams, there are lots of things we still don't know — but we might do soon. A new book seeks some answers. What's at the bottom of a black hole? See question Photograph: Alamy.
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