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In this lesson, you can learn about the properties, reactions and significance of alkenes, one of the groups of unsaturated hydrocarbons.
Nesta lição, podem aprender acerca de termos e conceitos básicos relacionados com os circuitos elétricos.
What characteristics do energy-efficient buildings have?
Learn about the life of the Afro-American civil rights activist.
This lesson is about the concept of consumer awareness and consumers' rights.
In this lesson, you can learn about environmentally conscious consumption and buying habits.
Learn about the properties of natural rubber, the production of synthetic rubber and its uses.
Learn about two dienes that play a significant role in industry.
Esta lição compara os organelos encontrados em células animais e vegetais.
Nesta lição, podem aprender acerca da história, estrutura e utilidade dos microscópios óticos.
Os óvulos e os espermatozóides são os gâmetas responsáveis pela reprodução.
One of the properties of aqueous solutions is their pH, which can be acidic, neutral or alkaline.
Aprendam acerca da história da Terra e de como a vida se desenvolveu neste planeta.
Learn about the structure and use of Bunsen burners.
Aprendam acerca das características e classificação dos vertebrados.
Learn about pregnancy and childbirth.
In this lesson, you are going to learn useful vocabulary for rooms and furniture.
In this lesson, we are going to learn some classroom objects and classroom instructions.
This digital lesson is all about free time activities and words we use to talk about them.
In this lesson, you will learn how to use the verb to be and also how to say countries and nationalities in English.
Learn about one of the greatest leading figures in history.
Have you ever wondered what type of hammer you should use for different nails?