Hola. In this lesson we'll be trying to be as negative as humanly possible in Spanish!

Affirmative & Negative expressions in Spanish - Test #1 (intermediate)

Please ignore the specificity of the dates, this was made for June 2010 but I think much of the advice is cross topical and might be helpful........

The mutualism relationship between nodular bacteria and leguminous plant

Stars and planets | Introduction

In this video, the teacher discusses nine letters that have been lost from the English alphabet over time. The video provides interesting insights into the history of the English language and invites viewers to share their thoughts on...

Element and compound

The colored transparent and opaque objects

Distance and displacement

The video is a lecture presentation on experiments to find the speed of a wave on a wire. The presenter first explains the theory behind the experiment, involving the formation of a stationary wave and the measurement of wavelength to...

The video discusses the production of electromagnetic waves from atoms and nuclei. It covers different examples of producing radio waves, microwaves, x-rays, gamma rays, infrared radiation, visible light, and ultraviolet light. The video...

This is a lecture video on particle motion of gases, explaining how the temperature of a gas affects the motion of its particles and its pressure. The video starts by describing the kinetic energy of gas particles and how they collide...

This video is a lecture presentation on the process of genetic engineering. The presenter describes and discusses the steps involved in modifying the genome of a bacterium cell, and then evaluates some of the uses and...

This video explores how the direction of an induced potential within a conducting wire is affected by the direction in which the magnetic field that produces the potential moves. It covers the concept of electromagnetic induction and how...

This video provides an overview of Judaism, exploring its history, beliefs, and customs. It discusses the origins of monotheism with Abraham, the importance of the Torah, and the central pillars of Jewish life. It also touches on the...

The video is a lecture on the economics of the sport and leisure markets, as well as the healthcare market. The lecturer explains the concept of supply and demand and how it applies to these markets. The lecture covers topics such as...

This is an educational video that discusses the factors that affect diffusion, which is the process by which particles move from an area of high concentration to an area of low concentration. The video outlines three key factors that...

The video is a lecture on thermal equilibrium and infrared radiation. The lecturer discusses how a body can remain at constant temperature, the relationship between temperature and radiation emitted by a body, and how the temperature of...

The video is a lecture on lifestyle and noncommunicable diseases. The speaker explains the difference between communicable and noncommunicable diseases, and how noncommunicable diseases are caused by inheritance and lifestyle factors...

AP Physics C: Electricity and Magnetism review of Current, Resistance, and Simple Circuits including: deriving electric current in terms of drift velocity, current density version of Ohm’s law, defining resistivity, deriving resistance,...

In this video, the speaker discusses a required practical activity on the chemistry specification which involves investigating how increasing the concentration of a reactant increases the rate of reaction by collecting a gas. The speaker...

This is a video that explains how to apply supply and demand to financial markets. The video provides examples of applying supply and demand to various financial products such as loans, bonds, and equities. The presenter also discusses...

This video explains the human defense systems and how our bodies protect against pathogens or microorganisms that cause diseases. The video emphasizes three main ways of defending ourselves against pathogens: physical barriers, chemical...

This video is a lecture on the topics of gravity and orbits. The speaker starts by discussing how objects in orbit remain in orbit due to the gravitational force experienced from other celestial bodies. They then explain how the...