Math
Sub Category
Learn to add and subtract integers with counters
Using counters is a great way to teach integers to students and a great way to visualize integers when adding and subtracting.
You can use almost anything to represent integer counters.
Paper circles,coins, plastic circles can all be used as counters.
Moon vocabulary In this video, I define,
Waxing Moon
Waning Moon
Crescent Moon
Gibbous Moon
New Moon
Learn how to figure out the original price from the percent and the discount price.
Sample original price questions
John saw that the $15.00 t-shirt he liked was discounted 25% from the original price.
What was the original price of the t-shirt?
Drew bought a used Honda Accord that cost $300. This amount was 70% of the original price. What was the original price of the car?
Refurbished computers sell at 40% discount of the original price. Amazon sells a fast,sleek, refurbished computer for $800. What was the original price of this computer?
Math Standard: MGSE6.RP.3c Find a percent of a quantity as a rate per 100 (e.g. 30% of a quantity means 30/100 times the quantity); given a percent, solve problems involving finding the whole given a part and the part given the whole.
English
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Portuguese
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For more Math help visit our website
http://www.moomoomath.com/
PQRST Strategy Preview Question Read Summarize Test
Use this reading strategy to help increase your reading effectiveness.
The reading strategy is a modified version of PQRST in which you use your hand to help you remember each part of the strategy.
The five parts of the strategy are as follows.
Preview
Question
Read
Summarize
Test
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The gas giants which are also called the Jovian planets include the planets, Jupiter, Saturn, Uranus, and Neptune.
These planets are not only huge but have no real surface, are composed of hydrogen and helium, and revolve around the Sun slowly.
These planets also have rings and many moons that revolve around them.
Photo Size of Planets
http://www.lesud.com/lesud-astronomy_pageid81.html
Phaneritic: Are igneous rocks with crystals larger than 1 mm. You could describe the texture as coarse Here are some examples
Aphanitic: The name tells you about this texture a = not
Phaner = visible
These rocks have very fine small crystals
Porphyritic: igneous rocks, for a rock that has a distinct difference in the size of the crystals, with at least one group of crystals obviously larger than another group. Wikipedia
Glassy: Are like the name suggests no crystals and the texture of glass.
Vesicular: are igneous rocks with bubbles they can be mafic or felsic
Pyroclastic: is a mixture of rock fragments, pumice, and volcanic ash. The ash is very fine-grained, so only the rock fragments and pumice are identifiable. A rock with a pyroclastic texture is termed a tuff with small fragments, a volcanic breccia if the fragments are larger.
Rock pictures
https://www.flickr.com/photos/....jsjgeology/161280286
Additional Information Igneous Rocks
http://www.moomoomathblog.com/....2020/03/igneous-rock
Alkaline Earth Metals-- Alkaline earth metals are found in group 2 of the periodic table
They include beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra)
The alkaline earth metals share several common properties, they have
Low density
Silver and soft metals
Ductile and malleable
React with halogens and water
Alkaline earth metals are reactive, not as reactive to alkali metals, but still very reactive. This is because they all contain two electrons in their outer shell. Because they are reactive they are usually found in nature in compound form.
Strontium compounds are often added to fireworks displays for their red flame test color.
Calcium is used by our body for our teeth and bones.
Magnesium is used in antacid and barium is used in light bulbs.
So there are the group 2 alkaline earth metals. They each have two valence electrons.
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What happens when you mix sodium and water?
Hint: It involves fire.
https://www.youtube.com/watch?v=YRPuDQtB_5Y&t=41s
Biological Niche and Habitat
Learn about an organisms ecological niche and what a habitat is.
The biological niche of an organism is the role or job an organism fulfills.
The habitat is where the organism lives.
You may also enjoy: Freshwater Ecosystems
https://www.youtube.com/watch?v=BwP1zxnKb14
Niche and Habitat
https://moomoomath.com/biologi....cal-niche-and-habita
There are over 4000 species of mammals. We are mammals. In this video, I cover some common traits of mammals.
Almost all mammals have at least 10 characteristics in common. I cover 9 of these traits of mammals.
They all have a spinal cord.
Most have ears
Mammals have mammary glands.
Mammals have sweat glands
They have a unique jaw shape
These animals have teeth
Four chamber heart
Examples of mammals include lions, elephants, fox, hippos, humans, chimps, and many more.
More information
http://www.moomoomathblog.com/search?q=mammals
There are four main classifications of galaxies
Elliptical galaxies which are featureless and spiracle.
Galaxy Picture Credits
Spiral galaxy
The Hubble Heritage Team (AURA/STScI/NASA) NASA Headquarters - Greatest Images of NASA (NASA-HQ-GRIN) -http://nix.larc.nasa.gov/info;jsessionid=1sl2so6lc9mab?id=GPN-2000-000933&orgid=12http://imgsrc.hubblesite.org/hu/db/images/hs-1999-25-a-full_tif.tif
Elliptical galaxy
NASA/ESA Hubble Space telescope - http://www.spacetelescope.org/images/potw1519a/
Barred galaxy
NASA, ESA, and The Hubble Heritage Team STScI/AURA) - http://hubblesite.org/newscent....er/archive/releases/ http://www.spacetelescope.org/images/opo0501a/ ([cdn.spacetelescope.org/archives/images/screen/opo0501a.jpg direct link])
Lenticular
NASA, ESA, and The Hubble Heritage Team (STScI/AURA) - http://www.spacetelescope.org/images/opo0624a/ (direct link) http://hubblesite.org/newscent....er/archive/releases/ (direct link)
Spiral these have arms that spiral outward
Lenticular galaxies are given the symbol S0. These galaxies consist of a bright central bulge, similar in appearance to an elliptical galaxy, surrounded by an extended, disk-like structure.
Irregular galaxies are any other galaxy
Learn all about the stomach. The stomach is a major site of digestion and is a muscular pouch.
In the video, I cover the basic anatomy of the stomach and several facts about the stomach.
The stomach has four main regions, the cardia, the fundus, the body, and the pylorus.
Picture of stomach
By DBCLS 統合TV, CC BY 4.0, https://commons.wikimedia.org/....w/index.php?curid=55
The first stage of mitosis called prophase
State of Georgia 7th Grade Math Year in Review
Topics covered this video
Adding sign numbers
Subtracting sign numbers
Dividing Decimals
Multiplying fractions
Divide mixed numbers
Convert fractions to a decimal
Convert percent to a decimal
Convert decimal to a percent
Example Problems
-3 + 9
-24 + -17
72 - -5
-93.1 ÷ 24.5
3/4 * 1 2/3
convert 2/5 to a fraction
convert 5/8 to a decimal
convert 20% to a fraction
7th Grade Math Playlist ( Entire Year)
https://www.youtube.com/playli....st?list=PLurjkZV1ykG
Learn more about Arthropods
http://www.moomoomath.com/arth....ropods-characteristi
What are the main characteristics all arthropods have? Arthropods are everywhere. They range from bees to spiders. All arthropods have several traits in common. They all have an exoskeleton, bilateral symmetry, jointed bodies, and segmented
appendages.
Keywords: Arthropods for beginners, Arthropod Definition
0:00 Introduction
0:19 Exoskeleton
0:47 Segmented Bodies
1:08 Jointed Appendages
1:51 Open Circulatory System
Arthropods
https://moomoomath.com/charact....eristics-of-arthropo
In this video, I answer the question, " What makes an insect an insect?
An insect belongs to the phylum Arthropoda and the class Insecta
Insects have an exoskeleton,wings,6 legs, and a segmented body.
Ecological pyramids
Ecological pyramids show how energy is transferred in an ecosystem.
In this video, I cover three types,
pyramid of energy
pyramid of biomass
pyramid of numbers
Moons of the planets. I review the 7 largest moons of Saturn
I review the following moons
Mimas
Enceladus
Tethys
Dione
Iapetus
Rhea
Titan
Transcript
http://www.moomoomathblog.com/....2020/07/7-largest-mo
Pictures of moons
https://en.wikipedia.org/wiki/Moons_of_Saturn
In this video, I describe the four stages of mitosis, prophase, metaphase, anaphase, and telophase.
During metaphase, the sister chromatids align in the middle of the cell.
However for this to happen a couple of things had to happen during prophase
During prophase, the chromatin condensed into x shaped chromosomes.
Each half of the x is a sister chromatin with identical copies of the DNA
In other words, a sister chromatin is 'one-half' of the duplicated chromosome.
The two sides of the x shaped chromosome is attached at the centromere.
Centromeres are the regions of DNA where the sister chromatids are most tightly connected.
During anaphase, the chromosomes line up in the middle of the cell.
The chromosomes move away from each other during the phase of mitosis called anaphase.
Finally, in telophase, the nuclear membrane reappears and the cell pinches in the middle.
What happens in the mitochondria?
In this video I would like to talk about what happens in the mitochondria.
The mitochondria is often called in school the powerhouse of the cell. It is a structure in the cell that generates ATP which is converted into energy. Think of the mitochondria as the charging station for your cell phone. Without any power your cell phone is not very helpful.
A mitochondria looks almost like a small cell inside a cell. It has ribosomes and dna. It has the ability to duplicate.
The mitochondria has two layers, an inner membrane and an outer membrane, the matrix, and the intermembrane space.
Cellular respiration requires sugar and oxygen in order to create ATP
First, the sugar in the form of glucose is converted into two pyruvates in a process called glycolysis This occurs outside the mitochondria and produces 2 ATP
The pyruvate which earlier was sugar travels into the mitochondria and more specifically the matrix.
At this location the pyruvate helps power the krebs cycle
During this process carbon dioxide is given off and NADH and FADH2 are formed and 2 molecules of ATP
Now we move to the step in which oxygen is used.Inside the inner wall are protein pumps.
NADH and FADH2 provide energy for these pumps and hydrogen ions flow back and forth through the protein pumps and generate 34 ATP.
This is called the electron transport chain.
The waste products from powering the electron transport chain protein pumps combine with oxygen to produce water molecules.
Take a journeyto the cell
https://www.youtube.com/watch?v=QS274gwv_Sc
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Take a journey into a cell and learn about the cell organelles
https://www.youtube.com/watch?v=3sgSJ44hOEg
A concave mirror curves inward in the center. In this video, I use a laser to demonstrate ray of incidence, the ray of reflection,focal point,center of curvature, and the vertex
