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Listed under:  Science  >  Forces and energy ### Balloon car challenge

In this practical activity, students design and build a balloon-powered car and race it to better understand the ideas related to rocket propulsion. The resource includes a step-by-step teacher guide and student worksheets. ### Kites

In this practical activity, students will learn about types of kites, some kite history and how kites fly before making and flying a kite themselves. The activity includes a teacher guide and student worksheet. ### Energy skate park

This is an interactive resource about the potential and kinetic energy changes as a skater rolls around a skate park. Students learn about conservation of energy with a skater, they can build tracks, ramps and jumps for the skater and view the kinetic energy, potential energy and friction as he moves. Students can also ... ### How the Rubber Meets the Road

Lesson focuses on how engineers design tyre treads to increase safety and reliability. Students are presented with the challenge of designing a new tyre tread that will be safe when driving in rainy conditions. Student teams will design and construct a sample tread out of clay, then test and evaluate the effectiveness of ... ### Stopping Distances

Students use this resource consisting of six slides with diagrams, written explanation and voice-over to understand how to calculate the total stopping distance of a car. There is a two-question quiz and a summary slide. This resource should be used before the resource 'Factors Affecting Thinking Distance'. ### Balanced Forces

Students use this resource consisting of five slides with diagrams, written explanation and voice-over to understand that balanced forces produce no change in the movement of an object. There is a two-question quiz and a summary slide. ### Pivots and Levers

Students use this resource consisting of seven slides with diagrams, written explanation and voice-over to understand that forces can cause objects to turn about a pivot and that the turning effect of a lever depends on the force and its distance from the pivot. There is a two-question quiz and a summary slide. ### Magnetism and Electric Current

Students use this resource consisting of nine slides with diagrams, written explanation and voice-over to understand that wires carrying an electric current produce a magnetic field and that a current in a coil produces a magnetic field pattern similar to a bar magnet. There is a two-question quiz and a summary slide. ### Forces

Students use this resource consisting of seven slides with diagrams, written explanation and voice-over to understand what forces are and what they can do. There is a two-question quiz and a summary slide. ### Circuit Diagrams

Students use this resource consisting of three slides with diagrams, written explanation and voice-over to understand how to draw simple circuits and the symbols used to represent them. There is a two-question quiz and a summary slide. ### experiMENTALS: Disappearing coin trick

This resource contains a materials, instructions and brief explanation for students about the process of rotating hands to make a coin seem to dislodge. ### Uses of Satellites

Students use this resource consisting of five slides with diagrams, written explanation and voice-over to understand some uses of artificial satellites including geostationary satellites. Uses identified include telecommunications, weather forecasting and spying. There is a two-question quiz and a summary slide. ### Series and Parallel Circuits

Students use this resource consisting of three slides with diagrams, written explanation and voice-over to understand how to the arrangement of bulbs in series and parallel circuits and understand the differences between them. There is a two-question quiz and a summary slide. ### Coal and its uses

Find out where we get the coal that powers our homes and industries. This is a PowerPoint presentation outlining how coal is formed, mined, processed and used. All slides contain images or maps. Teachers' notes are included. ### Useful Friction

Students use this resource consisting of six slides with diagrams, written explanation and voice-over to understand how friction is needed in movement and braking. The fact that friction produces heat and causes wear is also mentioned. There is a two-question quiz and a summary slide. ### Refraction

Students use this resource consisting of ten slides with diagrams, written explanation and voice-over to understand refraction of light and know some examples. There is a two-question quiz and a summary slide. ### Stretching Materials

Students use this resource consisting of ten slides with diagrams, written explanation and voice-over to understand that the extension on a spring is proportional to the weight stretching the spring up until the elastic limit is reached (Hooke's Law). There is a two-question quiz and a summary slide. ### Clockwise and Anticlockwise Moments

Students use this resource consisting of five slides with diagrams, written explanation and voice-over to understand that a moment is a turning force, which can be clockwise or anticlockwise. There is a two-question quiz and a summary slide. ### Gravity

Students use this resource consisting of four slides with diagrams, written explanation and voice-over to understand that gravity is a force of attraction which acts on Earth towards the centre of the planet, and that the size of the force of gravity depends on the mass of each object and the distance between them. There ... ### experiMENTALS: Bouncing balls

This resource contains a materials and instruction list and brief explanation for students to observe what happens when two different sized balls are dropped independently or in vertical contact. The simple explanation relates to transfer of energy.