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Fourth Grade Videos (1,220 results)

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Global Problem Solvers: The Series, Season 1 Complete
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A village in Malawi is having trouble getting clean drinking water. Local well pumps are broken, technicians are not coming by for routine checkups, and girls are missing school, and the #GlobalProblemSolvers team is here to help. Watch along as they evaluate the situation and come up with a plan to fix the immediate problem. Discover how they work together to create a solution that monitors all the wells in the area in real-time so problems can be taken care of more quickly and with less…
Halloween Clock Reaction
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When three clear solutions are combined together, the mixture remains colorless for a few seconds, then it develops a bright orange precipitate and finally, after several more seconds, it suddenly turns black. Due to the colors which appear (orange and black), this demonstration is often called the "halloween clock reaction" or the "Old Nassau reaction" (the latter name refers to the Princeton University, where the reaction was discovered). Moreover, the timing between the transitions can be…
Helping Others Through Semiconductors
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The world relies on semiconductors for practically every new products. See how and how you can be part of the teams that do it!
How to Assemble Your BlueBot Chassis
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This video shows how to assemble the plastic chassis that comes with the Science Buddies BlueBot kit. The kit can be used in four different fun robotics projects that are beginner-friendly and do not require any programming. Robot kit available here: https://www.homesciencetools.com/product/bluebot-4-in-1-educational-robotics-kit/?aff=SB1 To view full directions for the related projects, see: Light-Tracking Robot:…
How to Gap a Spark Plug
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How to correctly gap a spark plug. This is a fast and easy video on how to gap a spark plug and spark plug gap adjustment. All plugs have to be checked and a gap tool is $1. Incorrect plug gap can lead to poor performance and poor fuel economy. Platinum plugs have a recommended replacement every 50-100k miles depending on your vehicle and use... Copper plugs have a recommended replacement every 30k miles or so. Product Used: - Spark Plug Gap Tool: https://amzn.to/2UxtBER **If the video was…
How Tony Became a Tool and Die Maker | SkillPointe
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Literally everything around you was probably made by a tool that a tool and die maker made. Tony Tinge talks about what it takes to be a tool and die maker and why it is a job that will always be in demand.
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