Menu

Introduction to Biology – Wikijunior Science textbook

Introduction to Biology free text-book for kidsIn an Introduction to Biology, a textbook for upper elementary and middle grade, published by Wikijunior, we learn about a range of topics, including a detailed look at the human body and cells, and an overview of kingdoms, archaea, bacteria, protists, fungi, plants, and animals.

This text is available in creative commons (CC-BY-SA), so you are free to share and reuse pretty much unrestricted, as long as attribution is provided and any resulting material is published the same way. This means the material is perfect for creating new projects or books of your own.

See more books like this in our Wikibooks category.

See more books about science in our Science category.

 

Sample text from Introduction to Biology

Biology is the study of Life. It helps us understand many things, such as how our body works, how our body keeps warm, and what we are made of. Biology is very important to know. Some subjects in Biology are Genetics, Zoology, Botany, and Ecology.

A Biologist is someone who studies Biology.

Biology is the study of Life. It helps us understand many things, such as how our body works, how our body keeps warm, and what we are made of. Biology is very important to know. Some subjects in Biology are Genetics, Zoology, Botany, and Ecology.

A Biologist is someone who studies Biology.

0.1 What is life?

Living things are different from things that are not alive. It is usually easy to tell what is living and what is not, except with really small “microscopic” life forms and colorless, lifeless-looking mosses.

Here are some properties of living things. Some non-living things can have some of these properties.

Living things can change and grow. However, volcanoes also change and grow.

Living things can move. However, the wind is moving air, and water always moves downhill.

You probably want to know how plants can move. They can grow, and sometimes move more rapidly than that, in response to things such as the sun or water. One example is that sunflowers will turn during the course of the day so that they are always facing the sun. Another example is that if a plant gets tipped over, it will want to turn upwards.

Living things can reproduce. That is they can produce copies of themselves, over and over. This is the most important difference between living and non-living things.

In order to reproduce, living things need nutrition, that is chemicals and energy sources in order to assemble the materials needed to reproduce themselves. In this process , living things must excrete waste. Waste is material which is of no use, or harmful.

Animals, bacteria, and plants are examples of living things. Rivers, mountains, oceans, and soil are examples of non-living things, but often they are homes for living things.

Cars and tables are not living things because they cannot reproduce themselves.

0.2 Levels of Life

Living things can be many sizes. Also, biologists organize the structures and groupings of living creatures according to size. A living creature is called an organism. Organisms can consist of single cells or multiple different types of cells grouped into tissues and organs. From small to large, these are how living things are grouped.

  • Cells (1) – Most cells are only a few microns wide, so small they can only be seen with a microscope. A micron is one thousandth of a millimeter.
  • Tissues (2)
  • Organs (3)
  • Organ systems (4)
  • Organisms
  • Populations
  • Communities
  • Ecosystems
  • Biomes
  • Biosphere
(1) http://en.wikibooks.org/wiki/%2FCells
(2) http://en.wikibooks.org/wiki/%2FTissues
(3) http://en.wikibooks.org/wiki/%2FOrgans 
(4) http://en.wikibooks.org/wiki/%2FSystems

 

To keep reading this free science ebook for kids, Introduction to Biology, select read online or download pdf from the buttons below, or read this text online at wikibooks, here: https://en.wikibooks.org/wiki/Wikijunior:Biology

See our Most Recent Books 

The Secrets of Chocolate - The history of chocolate, how chocolate is farmed, and how chocolate is made, along with fun facts, this is all what you’ll learn about chocolate in this exciting book on The Secrets of Chocolate.    Spread the love
Megan and the Princess of Death - In this second Megan mysteries book, we find Megan after following Frits down a cable car line, trapped in another strange world, The Hopah Place, with an annoying princess. Megan and Frits must journey through a series of scary-creepy caves to find their way back home, but first, she must solve three riddles. Will Megan ...
7 Powerful Books That Teach Children About Death And Grief - Death and grief are things that children will experience sometime in their lives – it’s unfortunate, but we’ve all been there. However, losing a loved one can be a traumatic experience for children. So, how can parents and family members be able to talk to their children about death and grief? While we try our ...
Best Free Learn to Read Apps for Children - Technology plays a critical in our children’s lives. As a parent, it’s up to you to choose the role that technology will play in your child’s life. Most parents allow the use of technology at home but, with limits. With technology, there is nothing your child cannot learn today from the comfort of their home. ...
10 Free Virtual Summer Camps your Kids will Love - Summer camps, which are a common feature of summer holidays, are also closed for the season. As summer approaches, many parents are wondering how they will keep their kids busy while in quarantine. As the world is in the midst of the second Corona wave, most countries have chosen to keep summer recreation activities closed. ...
Happy Maths 3 – Measurements - This is the number 3 book in the Happy Maths series, where children can learn about maths from a series of stories that convert maths problems into fun adventures. Book 3 in the series deals with measurements. Sample Text from Happy Maths 3 Sankhya and Ganith have been learning a lot of things in their ...
Why Are Bubbles Round? - Manu and Maya want to make some bubbles, why buy a bubble kit when you can make your own, their Ma suggests. They make their own bubble kit and then get to wondering more, for example what if the bubble kit shapes were not round, would it produce square bubbles? What if they added some ...
5 Simple Ways To Inspire Your Child To Write - Writing is one of the most important skills that children need to learn. As well as being an essential skill that they will require in their adult life, it is also a powerful tool for expression. Yet, for many children, writing is a challenging and boring chore. Here are five ways in which you can ...
Tania and the Mystery Smoker - This is book 35 of The Tania Series. Sonia is burned by a cigarette butt that falls on to the balcony of her home. Tania is enraged. She is determined to find the person who hurt her little sister and put a stop to their barbaric behavior by publicly humiliating them. But how will she ...
Lost in the Internet - Kunal’s Mum warned him against watching too much on the internet lest he gets sucked in, but he doesn’t listen. Kunal gets suddenly sucked into the internet and goes on a journey of discovery. Sample Text From Lost in the Internet Kunal loved the Internet. He was always asking Mummy for her phone so he ...

See This Month Most Popular Books 

The New Kid - The New Kid – Neha has just returned from a long vacation. Her friends give her a warm welcome. But in the time she was gone, a new family has moved in to the housing society and her friends have issues with the new kid. Neha wants to be friendly with him, but will her ...
animal-picture-book-about-behaviour The Lion Who Wouldn’t Try – Helping Promote Better Behaviour - In the Lion Who Wouldn’t Try is a story about trying, we see a story of a lion who is too afraid of failure to attempt anything. All the other animals are having fun, while the lion is moping around. He is too afraid of losing that he never ends up having any fun. This ...
uncle-uh-oh Uncle Uh-Oh – Life Stories for Early Grade - In Uncle Uh-Oh from Kanika G, a grouchy old man moves in to a new neighbourhood full of children. He snaps at the kids there a few times and they are terrified of him. He doesn’t talk to anyone, no one even knows his name. “Uh-oh! Here he comes.” the kids start to say when ...
Lost Laugh children's picture book cover The Lost Laugh – Fun animal adventure for young children - Hyena has lost his laugh a Fun animal adventure. Who will help him find it? This short beautifully illustrated book is lots of fun for young children. The Lost Laugh includes lots of repetition and simple language, making it a great book for early readers, older brothers and sisters learning to read will enjoy reading ...
You! Yes You! – An Interactive Monster Hunt - You! Yes You! is a fun interactive children’s storybook. We’re going on a monster hunt, and what fun we’re going to have, shaking, blowing, tickling, and lots of surprises. This fun book is bound to keep young children entertained and asking for “Again! Again!” – make sure you follow the instructions, strictly! (And of course, ...
Children's book about being different Why is Nita Upside Down – lessons in being different and good values - In Why is Nita Upside Down, a children’s book about being different, we learn important lessons about the value of being proud of who you are and that everyone is different. This book is created by Bookdash, a non-profit organisation dedicated to getting books into every child’s hands. By: Emma Hearne, Roxana Bouwer, Sarah Bouwer ...
Where's Lulu picture book Where’s Lulu – Fun reading for toddlers - In Where’s Lulu, a short fun book for very young children, Lulu’s hiding from her Mum, she doesn’t want to go out. But why is it she doesn’t want to go out? Find out more in this fun short picture book. Can you see her on each page? This book teaches children about the fun ...
calming manatee A Calming Manatee - A Calming Manatee is about being beautiful, and more importantly what real beauty is. It is about how it’s more important what you think of yourself than what others think of you. It’s also about how important it is to be kind. The book is aimed at teaching young children about loving themselves and others, ...
Little Goat Little Goat – Endearing young fiction - Little Goat wanders off in pursuit of some sweet grass, but does she know how far she’s going. Will Mother Goat find her again? Find out in this charming fiction for young children. This book with simple English is suitable for toddlers and those learning to read. Sample Text From Little Goat Little Goat went ...
Fish and chip shop early reader cover The Fish and Chip Shop – Early Reader - The Fish and Chip Shop is an early reader picture book which describes a trip to get fish and chips for lunch. It’s lunch time, and this little boy wants to try the fish and chip shop. What do you need to do when you order food? What will he choose for lunch? Come and ...

 


Sponsored Links:

Note – if you sign up through these links, it doesn’t cost you any extra, but FKB receives a small donation, which helps us move towards our aim of
FREE Hardcopies!  

All our posts are checked by Grammarly, the FREE online grammar checker (We still receive a donation even if you only sign up for the free account :-):

This site is hosted by Bluehost:

Leave a comment (it won’t be public) if you want help getting your own website cost-effectively.  

 
Spread the love
....