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Ages: 15 - 18
3835 Views:
Plant Hormones - Overview
From YouTube, produced by Brightstorm
Plant hormones are chemicals that promote or inhibit growth in plants. There are 5 main types of plant hormones. Auxin, commonly abbreviated as IAA, gibberellins and cytokininins all promote plant growth. Abcisic acid and ethylene inhibit plant growt... [more]
Found by teresahopson in Plant Structure
August 13, 2011 at 07:47 AM
Not Right For WatchKnowLearn
Ages: 12 - 18
3114 Views:
Best Ways to Study
From YouTube, produced by CBS
Erica Hill speaks with psychologist Jennifer Hartstein about studying myths and the best ways for kids to study at home. (03:40)
Found by ican2 in Exams / Tests
March 4, 2013 at 02:18 PM
Not Right For WatchKnowLearn
Ages: 11 - 16
3329 Views:
What was Life Like in the Trenches of World War I?
From youtube.com, produced by Simple History
What was life like in the trenches of World War I? Soldiers lived in narrow trenches dug into the ground.The conditions were horrible. Let's have a look. (01:45)
Found by teahistory in Trench Warfare
October 9, 2016 at 09:43 AM
Not Right For WatchKnowLearn
Ages: 11 - 16
5097 Views:
Finding the Area and Circumference of a Circle - Khan Academy
From YouTube, produced by Sal Khan
The instructor uses a graphics tablet (using different colors for emphasis) to discuss the area of a circle and how it relates to radius and diameter.  Several examples of finding the area and circumference of a circle are modeled using a step-by-ste... [more]
Found by teresahopson in Circumference and Area of Circles
February 1, 2010 at 08:37 PM
Not Right For WatchKnowLearn
Ages: 6 - 16
1829 Views:
Understanding Ecosystems for Kids: Producers, Consumers, Decomposers
From YouTube, produced by Free School
What is an ecosystem? An ecosystem is everything that interacts in a specific area. That includes plants, animals, sun, air, water, and even rocks! In a healthy ecosystem, every part gets what they need - food, water, shelter, light - and all of the ... [more]
Found by teresahopson in Energy Flow in Ecosystems
September 4, 2018 at 06:13 PM
Not Right For WatchKnowLearn
Ages: 8 - 14
6249 Views:
Multiplication Song: 7 Times Table
From YouTube, produced by Mr. R.
This song reviews the seven times table and shows some strategies to help students determine multiples based on the combination of products they already know. (03:26)
Found by raknyc in Seven
May 10, 2012 at 09:59 AM
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