Scientists review and ask questions about the results of other scientists' work. Physical Science Properties of objects and materials Objects have many observable properties, including size, weight, shape, color, temperature, and the ability to react with other substances. Objects are made of one or more materials, such as paper, wood, and metal. Objects can be described by the properties of the materials, and those properties can be used to sort a group of objects. Electricity in circuits can produce light and heat.
Electrical circuits require a complete loop through which the electrical current can pass.
Science and Technology Abilities of technological design Identify a simple problem. Propose a solution. Implementing proposed solutions. Evaluate a product or design. Communicate a problem, design, and solution.