الخميس، 24 نوفمبر 2016
الأحد، 25 سبتمبر 2016
الجمعة، 26 أغسطس 2016
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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الاثنين، 22 أغسطس 2016
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?
__________
الثلاثاء، 16 أغسطس 2016
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
| ||||||||||||||||||||
Here there are three groups, and each group has four dogs.
3 × 4 = 12
|
1. Draw dots in groups to match the multiplications.
a. 2 × 6
| b. 4 × 2 |
2. Fill in the missing parts.
a.
____ × ____ scissors = ____ scissors
_____+ _____ + _____ + _____ |
b.
____ groups, ____ rams in each.
____ × ____ rams = ____ rams
_____+ _____ + _____ | |||||||
c.
____ × ____ 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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