Learning About Weather and its Elements Video Lecture | Class 7 Oxford Science: Chapter Notes, Worksheets & Tests

If you're like me, you know what your perfect day looks like weather-wise sunny, rainy snowy, whatever. personally,
I love it when it's cool, and cloudy like just cold enough to wear a sweater.
You probably know that weather has something to do with how hot or cold it is outside
But really there's a lot more to it than just
Temperature. So grab your sunglasses your rain boots and your most colorful scarf because today, we're talking weather
Let's start with a big and pretty basic question: What exactly is weather?
Well, weather is the condition of the air or the atmosphere on our planet, but the thing is,even though
There's only one atmosphere on Earth the weather isn't the same all [over] the world there are
many different factors that can change the [atmosphere] in a certain area and together they determine what the weather is like from one minute and
From one place to [the] next these factors include temperature humidity wind speed and direction and lots of other things
But when you're talking about the overall weather patterns from a certain region of the world
You're talking about the area's climate weather is the minute-by-minute
Changes in the atmosphere climate is what the weather is like over a long period Of time in a specific area now the weather is
constantly changing all the time every day think of the weather as being like that one friend of yours who can never make up their
Mind about what movie they want to see or what restaurant
They want to go to just because it's beautiful and sunny outside when you wake up that doesn't mean you won't need an umbrella before
the day is over and raining is just one of the things that weather can do rain of course is just a form of
precipitation or water that falls from the sky it happens when droplets of water in the clouds or sometimes ice crystals get heavy enough [and]
Fall to the ground [if] their crystals the warm air [near] the ground will melt them as they fall forming liquid raindrops
But do you want to build a snowman?
Another common form of precipitation is snow
Snow is just ice crystals that don't melt into liquid water as they fall another snow like form of precipitation is sleet
If what happens when ice crystals fall toward the ground partly melt and then refreeze again?
But other kinds of weather can be way more severe and the most common kind of extreme weather is a form
I'm sure you're familiar with
Thunderstorms a thunderstorm can happen when strong winds make drops of water and pieces of ice collide and break apart inside a storm this causes
Electrical energy to build up which creates a little something called lightning
But all of this rain and snow and sleet I've been talking [about] that's all just weather and while weather can change in a few
hours [a] region's climate takes hundreds thousands even
Millions of years to change so how [can] we better understand the difference between weather and climate?
[how] about we send cartoon Sabrina on a little imaginary trip for a month?
Hmm
Okay here. She [is] at her destination
Yuma, Arizona
Let's pretend it's the fifth of the month on this particular day where cartoon Sabrina is it's warm
But very cloudy and the light rain has been falling on her
Sorry me all day since clouds and rain are what the atmosphere has to offer on this particular spot at this moment
And they can go away at any minute those conditions are yep, the weather now
Let's Fast-forward to the 10th of the month hello, son looks like tiny me won't be needing an umbrella today
How about the 15th?
more sun the 20th still sunny the 25th you guessed it sunny with a chance of well sunny and
Finally on the 30th the sun still shining little Sabrina. I hope you packed your sunscreen
So what does this quick [time-lapse] of a month in Yuma tell us?
It tells us that yuma Arizona is a pretty sunny place in fact on most days
It's one of the sunniest cities on the whole planet
So the City's weather patterns
Existed before mini-me arrived and will continue after she leaves in that case you could say that yuma has a sunny
Climate even if it's weather on a certain given day happens to be rainy now
You know that weather is much more than just temperature
It's the condition of our planet's atmosphere, and it's constantly changing you also know that weather and climate are not the same thing
But [I] say the extreme stuff for last the severe weather stuff that is you'll have to tune in next time to learn more about
Tornadoes Hurricanes and blizzards
there is only one atmosphere on earth, the weather isn't the same all over the world. There are