Humans love to explore. Strangely enough even horrible places - like Mars. Let's see how building a Mars base could work and how insanely nerve-wracking exactly it would be. The video "Building a Marsbase is a Horrible Idea: Let's do it!" is a resource included in the Space sciences topic made available from the Kurzgesagt open educational resource series.

Students design and construct electromagnets that must pick up 10 staples. They begin with only minimal guidance, and after the basic concept is understood, are informed of the properties that affect the strength of that magnet. They conclude by designing their own electromagnets to complete the challenge of separating scrap steel from scrap aluminum for recycling, and share it with the class.

Students conduct a simple experiment to see how the water level changes in a beaker when a lump of clay sinks in the water and when the same lump of clay is shaped into a bowl that floats in the water. They notice that the floating clay displaces more water than the sinking clay does, perhaps a surprising result. Then they determine the mass of water that is displaced when the clay floats in the water. A comparison of this mass to the mass of the clay itself reveals that they are approximately the same.

CHEM 1114 - Introduction to Chemistry is designed for a one-semester introductory chemistry course. For many students, this course provides their first introduction to chemistry. As such, this textbook provides an important opportunity for students to learn some of the core concepts of chemistry and understand how those concepts apply to their lives and the world around them. The text has been developed to meet the scope and sequence of most introductory chemistry courses, including an initial emphasis on the skills required (chapter 1 and 2) for the laboratory portion of the course.

The laboratory content of the course is divided into six topics, each with a unique focus. Each topic is presented in two sessions: (1) a case-study session and (2) a laboratory session. These sessions meet in succession and are designed so that focus topics are introduced in the case-study and extended in the laboratory. In case study, the relevance of chemistry to the focus topic is developed and experimental strategies and methods are discussed and demonstrated. In the laboratory, students conduct experiments, acquire data, and analyze results to further their understanding of the selected chemical systems. Please check the course syllabus for the specific dates of the case study and laboratory meetings and check MyUI for your meeting time and room assignment information. MyUI is available at https://myui.uiowa.edu/my-ui/home.page. The course syllabus can be obtained on the CHEM:1120 course web page which can be accessed through Iowa Courses Online (ICON) available at http://icon.uiowa.edu.

Cadmium is element number 48. This video is one of the 118 clips included in the periodic table of elements themed collection created by Brady Haran and the University of Nottingham in the UK.

Here it is - five grams of caesium in water... But did you know caesium (aka cesium) is also used to define the length of a second? This video is one of the 118 clips included in the periodic table of elements themed collection created by Brady Haran and the University of Nottingham in the UK.

In our first video about caffeine, Dr Rob Stockman extracts the molecule from six cups of coffee. Video also features Professor Martyn Poliakoff and Dr Samantha Tang.

Here's an update of our video about the element Calcium. This video is one of the 118 clips included in the periodic table of elements themed collection created by Brady Haran and the University of Nottingham in the UK.

Calculating the dot and cross products when vectors are presented in their x, y, and z (or i,j, and k) components.

Paul Andersen explains how you can use Coulomb's Law to determine the electric force between two charges. In Physics 1 students should be able to calculate the force between two charges and in Physics 2 students should be able to determine the force between up to four different charges.

Paul Andersen explains why astronauts are weightless. He also explains how Newton's Universal Law of Gravitation can be used to calculate the gravitational force between objects.

Californium is element number 98. This video is one of the 118 clips included in the periodic table of elements themed collection created by Brady Haran and the University of Nottingham in the UK.

Paul Andersen describes the history of calorimetry and explains how it can be used to measure energy changes in a system. The specific heat of water is well established and so as a system releases or absorbs energy from a surrounding water bath it can be measured.

The video resource "Calorimetry: Crash Course Chemistry #19" is included in the "Chemistry" course from the resources series of "Crash Course". Crash Course is a educational video series from John and Hank Green.

Students apply their knowledge of linear regression and design to solve a real-world challenge to create a better packing solution for shipping cell phones. They use different materials, such as cardboard, fabric, plastic, and rubber bands to create new “composite material” packaging containers. Teams each create four prototypes made of the same materials and constructed in the same way, with the only difference being their weights, so each one is fabricated with a different amount of material. They test the three heavier prototype packages by dropping them from different heights to see how well they protect a piece of glass inside (similar in size to iPhone 6). Then students use linear regression to predict from what height they can drop the fourth/final prototype of known mass without the “phone” breaking. Success is not breaking the glass but not underestimating the height by too much either, which means using math to accurately predict the optimum drop height.