Physical Sciences and Mathematics Commons^™

Physical Science - Under Pressure: Matter And Its Interactions, David Hernandez, Elizabeth Martinez

Model NGSS Lessons: 4th - 5th Grade

Air pressure, or atmospheric pressure, is the force exerted on objects by the atmosphere. Barometers are typically used to measure atmospheric pressure. Made of a liquid filled glass tube, the level of liquid will rise when the pressure increases and fall when the pressure drops. Lower barometric pressure tends to be associated with precipitation and cloudiness, while higher readings are related to sunshine and calmer weather. Air is made of invisible particles. The density of these particles is affected by atmospheric pressure. The greater the pressure, the more densely packed the particles are. In comparison, less pressure means a lower …

Physical Science - Gravity On Earth: Gravitational Force, Patrick Young

Model NGSS Lessons: 4th - 5th Grade

Gravity is a curious property of our universe. Gravity causes objects to attract each other with a force. The strength of this force depends on the masses of the objects and their distance apart. The direction of the force is from the center of one object toward the center of the other. Although the force is invisible, we can observe its direction by watching how objects move in response to the force.

Physical Science - Railroad Rescue: Energy Conversion, Patrick Young

Model NGSS Lessons: 4th - 5th Grade

In January of 1952, the Sierra Nevada mountains of California were stuck by a record-breaking blizzard. Railroad tracks through the mountain passes were being blocked by avalanches and snowdrifts. The tracks were generally kept clear by powerful rotary snowplows, but this blizzard was like nothing the Southern Pacific Railroad had ever seen before.

Physical Science - Energy Transfer: Heat And Light, Patrick Young, Peg Steffen

Model NGSS Lessons: 4th - 5th Grade

Energy is the ability to do work. Energy can be thought of as a currency which is universally accepted as the way to make things happen. Energy can be stored in many ways and transferred from place to place in many ways.

Some of the most frequently recognized types of energy are heat and light. These, along with others, can be classified as a phenomenon known as electromagnetic radiation (EM). Radiation is energy that travels and spreads out as it goes. The visible light that comes from a lamp in your house and the radio waves that come from a …

Physical Science - Classroom Detective Agency: Chemical Changes, Peg Steffen

Model NGSS Lessons: 4th - 5th Grade

Students are introduced to the differences between physical and chemical changes in simple kitchen substances that react to water and indicators in characteristic ways. The observable clues that a physical change has occurred includes changes in state such as gas, liquid, or solid. The material itself is the same before and after the change. An ice cube melting is an example of a physical change.

Earth Science - Oil Spills And Dust Bowls: Earth's Systems, Cassandra Armstrong, Peg Steffen, Elizabeth Martinez

Model NGSS Lessons: 4th - 5th Grade

Earth is comprised of four interconnected systems: geosphere, hydrosphere, atmosphere, and biosphere. All of Earth’s processes are due to energy and matter cycling within and among these four systems. Because these systems are so connected, it is important to understand both individual characteristics of each system independently as well as features of their interactions with each other.

Physical Science - Speed And Energy: Diving Energy And Speed, Patrick Young

Model NGSS Lessons: 4th - 5th Grade

Energy is the ability to do work. Energy can be thought of as a currency which is universally accepted as the way to make things happen. All moving objects have energy. The amount of energy depends on their speed and mass. The faster an object moves, the more energy it has, and the more work it can do on other objects with which it interacts.

Physical Science - Supervillain Detention! Properties Of Matter, Patrick Young, Peg Steffen, Elizabeth Martinez

Model NGSS Lessons: 4th - 5th Grade

Scientists and engineers need to understand the properties of the materials they use. They choose the best materials for specific projects based on the properties of the materials. For example, civil engineers must have a thorough understanding of the properties of materials that might be used to build roads, dams, or bridges and plan their designs around the materials that will be used.

Earth/Space Science - Earth's Place In Space: Seasonal Change, Elizabeth Martinez, Peg Steffen

Model NGSS Lessons: 4th - 5th Grade

A key Disciplinary Core Idea for understanding our place in space is that the orbits of Earth and the sun and of the moon around Earth cause observable patterns. These include day and night; daily changes in the length of shadows; and different positions of the sun, moon, and stars at different times. There are many misconceptions about earth’s orbit but it is important to remember and to convey to students that Earth is moving around the Sun and the Moon is moving around us. What we see each day with the motion of the Sun moving across the sky …

Physical And Life Science - Food And Energy: Animal And Plant Energy, Cassandra Armstrong

Model NGSS Lessons: 4th - 5th Grade

Energy exists in many forms and is constantly being transferred between forms. All energy types can be sorted into two main categories: potential and kinetic. Potential energy is stored energy. Chemical energy, nuclear energy, stored mechanical energy, and gravitational energy are all examples of potential energy. Kinetic energy is the energy of motion. Radiant (light) energy, thermal energy, sound energy, and electrical energy are all examples of kinetic energy. Energy cannot be created or destroyed, only transferred between the types of energy. Most energy we use on Earth stems from the nuclear energy from within the sun.