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Book Chapter
Matter and Energy in Organisms and Ecosystems
The big idea for an area of study that challenges students year after year but yet is essential to life processes is the relationship between matter and energy—how we get and use energy for life. If we put a phrase to this, it is all about cellular...
Book Chapter
Next Time You See a Maple Seed sample
The Next Time You See books are not meant to present facts to be memorized. They are written to inspire a sense of wonder about nature and foster a desire to learn more about the natural world. In this free sample chapter from the Next Time You See a...
Book Chapter
Phenomenon-based learning (PBL) is built on observations of real-world phenomena. PBL is not so much a teaching method as it is a route to grasping the big picture and is an approach that is fun and interesting for both teachers and students. In this...
Book Chapter
Friction is very common and experienced every day. It is a force that pushes on things and that you notice when two objects’ surfaces are in contact with each other. Air resistance is a force that occurs because moving objects hit the air in front ...
Book Chapter
There is always a force between the Earth and other masses. This force is called gravity or gravitation. Gravity affects all objects on Earth. It doesn’t matter if they are on the ground or in the air. In this chapter, the experiments focus on how ...
Book Chapter
Gravity pulls the air molecules toward the ground, and the molecules push on the ground. This pushing is called air pressure or atmospheric pressure. In this chapter’s experiments, students will learn about air pressure and the meaning of terms suc...
Book Chapter
All electrical gadgets and gizmos need an electric current to work. To make it easier to learn about and make circuits, you will need to know the symbols for some components. In this chapter, you will learn about these symbols and then plan and build...
Book Chapter
A magnet attracts objects made of iron and this phenomenon called magnetism has many uses. In this chapter, you will explore and experiment with magnetism in different ways, including bar magnet, magnetic field, magnetic globe, and electromagnet. Tea...
Book Chapter
Energy is everywhere in several different forms and can be moved from place to place in many ways. In these experiments, you will find out more about what energy is, how it can be transported, and how is it possible to transform energy to different f...
Book Chapter
In everyday life we often talk about pressure—high pressure and low pressure. We speak of the pressure in car tires, atmospheric pressure, pressure-sealed containers, pressure chambers, and so on. These are just a few of the ways we encounter press...
Book Chapter
Thermodynamics is the physics of heat, mechanical energy or work, and the conversion of one into the other. All systems follow the laws of thermodynamics and since almost all energy production is based on thermodynamics, it is important to understand...
Book Chapter
Energy is an essential part of all branches of physics. In mechanics, energy appears as both potential and kinetic energy. In this chapter, the experiments examine the conservation of energy and how energy can change from one type to another. Teacher...
Book Chapter
Color theory is an area of physics that can explain how the appearance of colors changes when colors are mixed, for example on a computer screen or with a printing press. Visible light can be divided into different ranges of wavelengths, which we see...
Book Chapter
Resonance—a system’s tendency to oscillate at greater amplitudes at certain frequencies—is a common phenomenon in physics. The explorations in this chapter will define how resonance occurs. Teacher background information, assessment, safety not...
Book Chapter
Buoyancy is a phenomenon that occurs not only in water but also in the atmosphere. The effect of buoyancy is easily felt in water. A hot air balloon rises up in the air because of a buoyant force from the air around it and the principle of buoyancy c...
Book Chapter
The concept of angular momentum can be related to linear momentum. The difference is that while linear momentum occurs with motion in a straight line, angular momentum applies to circular motion. The observations in this chapter cover the law of cons...
Book Chapter
Magnetism is a well known physics phenomenon that is used, for example, in computers for magnetic recording, in Maglev trains, or for holding notes on a refrigerator door. Magnetism is a phenomenon in which the magnetic materials interact with one an...
Book Chapter
Electromagnetic induction is the basis for producing energy in our society. This phenomenon is used in wind generators, hydroelectric generators, and nuclear power plants, as well as in metal detectors, induction brakes, and transformers. In this cha...
Book Chapter
In this chapter, you will find explorations on gadgets that are very interesting and illustrative but that do not fit into the other chapters. However, many of these gadgets complement the explorations in earlier chapters. Teacher background informat...
Acquired Book
On Teaching Science is a short, practical guide to key principles and strategies that will help students learn in any subject at any level, but with special focus on the so-called STEM (science, technology, engineering, and mathematics) subjects....