Curated Video
Understanding Reaction Time and Thinking Distance in Driving
This video explains the concepts of reaction time and thinking distance and their importance for drivers. It demonstrates how a slower reaction time can cause a vehicle to travel further before the driver applies the brake, and discusses...
Curated Video
Experiment to Investigate Factors Affecting Human Reaction Time
The video discusses a practical biology experiment that investigates the factors affecting human reaction time. The setup involves a subject seated with their weaker arm hanging over the edge of a table while their partner holds a meter...
FuseSchool
Human Reaction Time
DESCRIPTION In this video we are going to look at measuring reaction times and how reaction times can be affected by different drugs. CREDITS Animation & Design: Joshua Thomas jtmotion101@gmail.com Narration: Dale Bennett Script:...
Curated Video
Rates of Reaction Experiments: Investigating the Relationship between Concentration and Reaction Time
This is a lecture presentation on rates of reaction experiments. The presenter discusses the concept of the rate of a reaction and how it can be measured. The focus of the experiment is on investigating the relationship between the...
Curated Video
Measuring Reaction Times through the Ruler Drop Test: Investigating the Effect of Practice
The video is a lecture presentation on measuring reaction times. The presenter explains the concept of reaction time. The hypothesis that is being investigated in the experiment is whether reaction times can be reduced with practice. The...
Science Sparks
Test Your Reaction Time With a Ruler
Test reaction time with a ruler! Super simple science for kids. Find out more: https://www.science-sparks.com/test-your-reaction-time/
Curated Video
Experiment on How Increasing Reactant Concentration Affects Reaction Rate
The video discusses a required practical activity from the chemistry specification, which is an experiment to investigate how increasing the concentration of a reactant affects the rate of the reaction by observing a precipitate. The...
Curated Video
Investigating the Effect of Concentration on Chemical Reaction Rate: A Practical Experiment
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...
Catalyst University
Hippurate Hydrolysis Test | Theory & Results
In this video, we explore the theory of the hippurate hydrolysis [hippuricase] test and how to interpret the results.
Curated Video
P-Value Problems - Crash Course Statistics
Last week we introduced p-values as a way to set a predetermined cutoff when testing if something seems unusual enough to reject our null hypothesis - that they are the same. But today we’re going to discuss some problems with the logic...
Curated Video
Introduction to Catalysts and Investigating Catalytic Activity with Hydrogen Peroxide Decomposition
This video provides an explanation of what a catalyst is and how it can increase the rate of chemical reactions. The concept of activation energy is introduced, and it is explained that catalysts lower activation energy, allowing more...
World Science Festival
The Deceptive Watchman: How Our Brains Twist Time
A second doesn't always feel like a second—time can seem to slow down if you're riding a death-defying roller coaster, or speed up while you're having a night out on the town. But just what's going on inside our heads to skew our...
Curated Video
Polymer MFR Regression
Polymer properties such as density, melt index, and melt flow rate must be kept within tight specifications for each grade. This case study is to analyze polymer production data to predict melt flow rate. 0:00 Introduction to Polymer...
ProTeachersVideo
Demonstrating Chemistry - Spectacular Experiments: Glowsticks
Prof Hal Sosabowski demonstrates how glowsticks work in this visually impressive experiment, which can be used to teach about luminescence and rates of reaction. He mixes the chemicals in both standard and ultra-bright glowsticks,...
Curated Video
Why South Korea's Coronavirus Lockdown was so Effective: What Can we Learn? - TLDR News
Coronavirus continues to spread around the world, and different countries have had different reactions to the pandemic. In this video, we compare the approaches taken in different countries and explain how countries like South Korea have...
Curated Video
Its like Liquid Nitrogen - but Fire!
Giant Air Plant information: Its scientific name is Tillandsia Utriculata. They are called 'air plants' because they typically live in trees. People sometimes think the name means they can survive air alone, but thats wrong! they still...
Curated Video
Liquid Nitrogen Freeze-Ray Vs. Flamethrower
I made a freeze ray! Im basically a bonafide evil genius now. Freeze your cat, girlfriend, or flowers, the possibilities are endless..! wait no, thats about it. Some notes about the gun: There are commercial liquid nitrogen guns used by...
Schooling Online
Chemistry Skills: Validity Part 1
The archery contest has a long list of rules, but Chelsea the Cheater keeps breaking them! How does this affect the outcome (conclusion) of the competition? This lesson will introduce validity and examine the importance of having...
Schooling Online
IB Chemistry: Validity Part 1
The archery contest has a long list of rules, but Chelsea the Cheater keeps breaking them! How does this affect the outcome (conclusion) of the competition? This lesson will begin our analysis of validity by examining the importance of...
Curated Video
Why can't your body handle a punch to the liver? - Human Anatomy | Kenhub
A liver punch is not fun. We don't recommend it! With the right shot, the structure of the liver can be impaired. Find out what a normal liver looks like here: https://khub.me/aer8g Oh, are you struggling with learning anatomy? We got...
Curated Video
How US schools punish Black kids | 2020 Election
For the 50 million kids who attend public schools in the US, the 2020 election is personal. What do you wish the presidential candidates would talk about? http://vox.com/ElectionVideos When it comes to who gets punished and removed from...
Curated OER
SN2 Reactions
Bromomethane and hydoxide are the components used in these examples. Sal demonstrates how the rate determining steps in these Nucleophilic Substitutions involve both reactants. The way Sal attempts humor with the technical term of...
Curated OER
Introduction to Kinetics
The focus of this chemistry video is kinetics, which is a study of exactly what happens to compounds when they react together. Specifically, kinetics is a study of the rate of chemical reactions, and what forces affect that rate. Sal...
Curated OER
Le Chatelier's Principle
When compounds react with each other, the rate of the forward reaction and the backward reaction are the same when the reaction is in equilibrium. However, if other factors come into play, such as an increase in temperature, or the...