The Digestive System

The Digestive System is a series of hollow of organs that we use to break down and process nutrients and energy we need to function. It is pretty much the first step to How To Make An Animal.

The blastula, that little wad of cells that we used to be, turned into a little wad of cells with a tube running through it. That tube is your digestive system. Pretty much every animal has a digestive system of some kind but they are not all alike. Animal tracts are adapted to animals feeding behaviour and diet. For example a house fly eats mostly liquid or very finely granulated food. But first it must puke it’s digestive juices over it’s lunch before it sucks it up into it’s mouth. Most vertebrates put their food through one end of the tube, our digestive system processes it then it gets rid of the waste through the other end of the tube. The whole process is run by our autonomic nervous system, so we don’t have to think about it, until the last step when you’re in traffic and you’ve just had two cups of tea and a bran muffin. Among vertebrates, the digestive tract might be short or long or have organs that do different things, depending on what it’s feeding habits are

For example, dogs are mostly carnivores and also scavenger. They mostly eat meat but sometimes that meats been dead for a while, so the dogs digestive system has developed to take food in and then dump it onto somebodys lawn, all in about a period of six hours. Dogs have an extremely short digestive tract because if you’re in the habit of eating meat, you’d better be able to digest it fast. Cows on the other hand take a very long time to digest there food, about 80 hours because they have to process plants, mostly grass.

Now we’ll start talking about the human’s digestive system because you’re probably a human and you’ll be wanting to know how your body works. Like most animals, humans have a bunch of different acids and enzymes in our digestive system that break down food. The digestive system starts in the mouth. Saliva is produced by the salivary glands in your mouth which is the first step in breaking down your food. You then use your teeth to chew up the rest of the food which you then swallow using your tongue. Your food exits the mouth and goes down your throat or Esophagus. When the food gets close to the trachea, your breathing pipe, a flap closes over it so your food doesn’t go into your lungs. Choking is your body’s reaction when food ends up in your trachea. After, your food enters your stomach where acids and enzymes begin to break down and take in the protein. Your stomach turns the food into a soup-like liquid which you would have seen the last time you had a tummy bug. Next to the stomach is the liver. The liver produces a digestive juice called bile which is the acid that dissolves fat. You begin to vomit out bile when there is no more food in your stomach, when you have a tummy bug. The gallbladder stores bile between your meals, when there is no fat to dissolve. Meanwhile, the pancreas, a digestive organ, produces pancreatic juice, containing digestive enzymes that help digestion, pumps other acids into your stomach. Your food then goes down into the small intestine where it squeezes out the starches, protein and carbohydrates which your body will use for other things. The average male humans small intestine length is 6.9m.

Your food is then pushed into the large intestine which squeezes the mushy liquid into a lump. Next it passes through the rectum which is the end of the large intestine. The lump comes out of your anus or bum, hopefully landing in the toilet.

Now you know how your food is digested. Next time you're eating food or going to the toilet you will know how it happens.

OMG! JURASSIC WORLD THE GAME AQUATIC PARK UPDATE!

How dinosaurs became extinct (Explanation)

Just under 66 million years ago the Mesozoic Era ended in a mass extinction. It destroyed all the giant dinosaurs, the pterosaurs, most marine reptiles and many other animals that we now know only from fossils.

Scientists are still not certain whether the extinction was caused by the asteroid strike or by the devastating eruption of masses of lava and poisonous gases from the gigantic Super Volcanoes.

These are some of the theories that scientists have come up with:

Super Volcanos - Vast quantities of molten lava flooded over half of India and cooled to form layers of basalt rock 2km deep. The layered rocks are called the Deccan Traps.

Volcanic Cloud - Enormous clouds of gas shrouded the globe.

Acid Rain - Chemicals in the volcanic ash mixed with water to cause deadly acid rain.

Asteroid Impact - The explosion caused by the asteroid strike formed a crater over 180km wide, now buried deep underground. Debris from the impact would have filled the atmosphere. The explosion caused by the asteroid strike formed a crater over 180km wide. It is one of the biggest asteroid craters on earth, but it is invisible from the ground. The explosion would have sent a cloud of dust into the air that was thick enough to block out the sun which caused plants and animals to slowly die out

Explosion Debris - Dust mixed with a chemical haze would have blocked vital sunlight for at least a year.

Global Forest Fires - Searingly hot molten rock ejected from the impact would have triggered huge wildfires across the world.

Blast and Shock Waves - The shock of the cataclysm must have destroyed all life near the impact zone.

Mega Tsunami - There is evidence of huge tsunamis that swept across the Caribbean and Atlantic coasts

Climate Crisis - Whether it was colossal volcanoes, the impact of a massive asteroid, or a combination of the two, the effect was catastrophic climate change that chilled the Earth and wrecked the global ecosystem. The world took millions of years to recover.

While some types of animals disappeared, others somehow survived both the initial catastrophe and the years that followed, when plants struggled to grow and food was scarce. The first group of animals was the Sharks. Along with other fish, these survived in the oceans. They carried on evolving into the sleek hunters they are know. Next are Frogs. Freshwater animals seem to have been shielded from the worst effects, allowing frogs to survive into the new era.

The third is Turtles. Surprisingly, more than 80% of turtle species alive in the Cretaceous still existed after the extinction event. Next are Snakes. Many lizards and snakes made it through the crisis and became ancestors of all the lizards and snakes alive today. The fifth are Mammals. All the main group of mammals living at the time survived, eventually flourishing in the Cenozoic Era.

Next are Insects and Spiders. Small land invertebrates were badly hit but many groups escaped extinction and eventually started to flourish again.

The seventh are Shellfish. Many types of marine invertebrates such as the sea urchins survived. But others vanished, including the ammonites. The catastrophe also wiped out all the pterosaurs and most other marine reptiles. At least 75 percent of all animals and plant species were wiped out.

The final result is that dinosaurs have been extinct for millions and millions of years, and are unlikely to ever return.

Sea Turtle Writing

Sea turtles have been around since the late Jurassic period, 150 million years ago.  They evolved from the prehistoric turtles, Archelon and Henodus.

The female turtle climbs slowly up the beach, where she digs a hole in which she will lay, 50 - 200 leathery, ping-pong ball sized eggs.  

Finally after six weeks of sitting in the sand the eggs begin to hatch, emerging from the sand when they do. When they have hatched they are about the size of your palm.  20% do not hatch.  

Once they have crawled out of the sand, they wriggle frantically to the water. Along the way they meet dangers such as sea gulls, crabs, raccoons and other pitfalls.

Only 50% make it to the sea.

The 400 sea turtles that make it into sea have to face the powerful waves and  repelling currents.

Baby sea turtles often stay under the shelter of flotsam or seaweed floating on the surface.

Dolphins, fish and sharks will also find baby turtles a delicious meal. Meanwhile the small turtles mainly consist of squid and small fish.

The survivors will increase in size turning from the size of a dinner plate to the size of a dinner plate. The only true predators know are some of the larger shark species and the occasional killer whale.

What If It Rained Everyday!!

What If It Rained EVERYDAY!?!?

If it rained everyday then we would be forced to stay inside all day. We would have to read and play video games forever. (Nothing wrong there) One bad thing is that sewage ponds would over flow creating a flood of... well... disgusting stuff that should not exist. But the worst bad thing is that the weather would be too bad for Paleontologists to go and dig up dinosaurs!!! HORROR! We would have to board up our doors and windows so that the sewage floods wouldn't come inside for a visit. We would have to dig tunnels under the ground so that we could visit our friends. If you didn't have a shovel you would have to use spoons! The best thing about it raining all the time though is going to sleep at night. If you are like me (Sammy Cha Cha) then you will loved lying in bed snuggled up while you listen to the rain drumming on the roof. If you were a farmer you would have to share your house with your cows, horses, goats, sheep, chickens and pigs. (Actually pigs are quite friendly)

Why is this maths?

This Game is called Wheely 5

This is maths because you have to figure out where to move your car using logic. Some levels are very confusing so you need to think really hard. You have to look around you at your suroundings to find stuff to help you on each level. 

4th Swimming (Sort Of)

From Sammy Cha Cha's Point Of View... 

Today on Wednesday 13th August I had my fourth school swimming lesson. Sort of. I felt wheezy and my nose was bunged up so I had to sit in the stands with Archie and Miss McNae where we watched the rest of the class swim. I could see my friends Jo Jo, Peachy Pie and Hunta Da Monkee diving into the pool. My group was doing breaststroke. I find breaststroke hard.

Swimming

Today we went to the...

Millennium Swim School

I was in a group Archie and Hunta Da Monkee. We did backstroke the whole time.
Hunta and Archie were showing me how to shoot water out of their hands. (Percy Jackson)
My friend Peach was in the lane next to me so we were slashing each other.

Harry Potter

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Really Hard Cross Word

Animal & Dinosaurs :)

Across
3. Native Bird
6. They Have Eight Legs
8. It Stings You If You Touch It
10. They Have Feathers
12. Giant Man Crushing Snake
14. Massive Prehistoric Sea Reptile
16. These Animals Build Dams
19. This Dinosaur Went All Wrong In Jurassic Park
20. World New Movie Coming Soon
22. Smartest Dinosaur
23. Animals With Scales
Down
1. This Creature Has A Giant Spine Running Down It's Back
2. Fastest Land Mammal
4. They Can Breath Underwater
5. The Females Do The Hunting
7. Blind, Burrowing Mammal
9. King Of The Dinosaurs
10. Famous Nature Channel
11. They Give Birth To Live Young
13. The Biggest Dolphin
15. Pink Bird
17. Red Flowered Tree
18. They Have Hard Shells Or Skin
21. Most Of Them Have Wings

Jurassic World Videos!!!

JURASSIC WORLD!!!!!!!!!

What if we were all witches and Wizards?

If everyone I was a wizard I would love to... 

go to Hogwarts School Of Witchcraft and Wizardry with my friends, Peach, Hunter Da Monkey and Jo Jo. I would love wearing cloaks and have a wand of my own. I would learn how to cat Expelliarmus, Expecto Patronum, Stupefy, Emobula, Reducto, Crucio, Imperio, Avadakadavra, Expulso, Petrificus Totalus, Bombada Maxima and Diffindo. I would love to be in Ravenclaw. I would play in the Ravenclaw quidditch team. Have a pet Hippogriff (Buckbeak) and of course play Harry Potter Wii games all day.