Learn About Water

All things are made up of matter, and there are three different forms that matter can exist in--solid, liquid, and gas. Some matter can change from one state to another when the temperature changes. When an object is a solid, its molecules are arranged in a pattern and don't move very much. In a liquid, molecules are farther apart from each other and move around instead of sticking together. The movement is what makes a liquid be fluid and take the shape of a container it is in. The molecules in a gas are even further apart and move very quickly with no pattern at all. molecules of substances look like as a solid, liquid, and gas.

Some substances can have two or more different states of matter. For example, peanut butter does not flow like a liquid. It acts more like a solid even though it is very soft. However, if you use heat to melt peanut butter, its state will change and it will flow like a liquid!

Properties of Water

Water is a very impressive and unique substance. It is the only natural substance that can exist in all three states of matter at the temperatures normally found on Earth. Water is usually a liquid, but when it gets to 32°Fahrenheit (F), it freezes into ice. Ice is the solid state of water. When water reaches 212° F, it boils. When it begins to boil, some of the water turns into steam. Steam is the gas state of water, and is also called water vapor. There is a lot of water vapor in the air we breathe.

Water is something that all living things need in order to stay alive. A human can live for several weeks without food, but only for a couple days without water. Water makes up about 70% of our bodies, so going long periods of time without drinking any water will make you dehydrated and could make you very sick.

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Every thing about Human Digestion

Human Body who am I Game

Human Body 

Word Bank

 brain  -    heart   -    lungs    -    liver    -   stomach   -    kidneys   -    small intestine   -    large intestine esophagus   -   trachea  -   skin   -  veins   -   arteries   -   bones   -    muscles

1. I have many jobs. I make bile to help your stomach break down food. I also store nutrients your body needs. I also make antibodies to help you fight disease. What am I? ____________________

2. I take absorb the nutrients that your body needs from your food and I put it in your bloodstream so your body can use it. What am I? ______________________________

 3. I am a muscle located behind your lungs. I am always moving, and I never get tired. I pump blood to all parts of your body. What am I? ______________________________

 4. When you eat, I mix your food with chemicals made by your body, then I churn up your food into smaller parts. What am I? ______________________________

 5. Your body can't use every part of the food you eat. The waste comes to me, and I dry it out so it can leave your body. What am I? ______________________________

 6. We are a pair of filters that clean your blood. We take liquid waste from your bloodstream and we send it down to your bladder. What are we? ______________________________

 7. We take oxygen that your body needs from the air and put it in your bloodstream. We also take carbon dioxide that is in your blood and send it out of your body. What are we? ______________________________

 8. I hold your body parts in. I have pores so sweat can escape your body. I am filled with nerves that help you to sense temperature and feel the things around you. What am I? __________

Why Does Matter Matter?

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LONG Division Lesson

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What is Multiplication means

The symbol × indicates multiplication. Multiplication means that you have a certain number of groups of the same size.

Here we have five groups, and each group has two elephants. 5 × 2 = 10 how many groups how many in each group We can solve it by adding: 5 × 2    =     2 + 2 + 2 + 2 + 2 = 10 “Five times two elephants is ten elephants.”

Here there are three groups, and each group has four dogs. 3 × 4 = 12 how many groups how many in each group We can solve it by adding: 3 × 4    =     4 + 4 + 4 = 12 “Three times four dogs is twelve dogs.”

1. Draw dots in groups to match the multiplications.

a.  2 × 6

b.  4 × 2

2. Fill in the missing parts.

a. ____ groups, ____ scissors in each. ____ × ____  scissors = ____ scissors _____+ _____ + _____ + _____	b.  ____ groups, ____ rams in each.  ____ × ____  rams = ____ rams _____+ _____ + _____
c. ____ groups, ____ dogs in each. ____ × ____  dog = ____ dogs _____+ _____ + _____	d. ____ group, ____ carrots in it. 1 × ____ carrots = ____ carrots

3. Write an addition and a multiplication sentence for each picture.

a. ___ + ___ + ___ + ___ = _____  ____ × ____ = ______	b.  ___ + ___ + ___ + ___ + ___ = _____ ____ × ____ = ______
c. ___ + ___ + ___ + ___ + ___ = _____ ____ × ____ = ______	d.    ___ + ___ + ___ + ___ = _____ ____ × ____ = ______

4. Now it is your turn to draw. Draw balls or sticks. Write the multiplication sentence.

a.  Draw 3 groups of seven sticks. _____ × _____ = ______	b.  Draw 2  groups of eight balls. _____ × _____ = ______
c.  Draw 4 groups of four balls. _____ × _____ = ______	d.  Draw 5 groups of two balls. _____ × _____ = _____

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