We’re giving away 1,400 free passes for 30 days of unlimited mysteries, phenomenon, labs, and engineering challenges.

Time Required: 200 minutes
In The Lab, students will:

Determine which mystery have received from a Mars mission by carrying out multiple physical properties tests. Students will investigate color, electrical conductivity, magnetism, and solubility. They will use evidence from their investigations to support their findings.

Develop a model to describe that matter is made of particles too small to be seen. [Clarification Statement: Examples of evidence supporting a model could include adding air to expand a basketball, compressing air in a syringe, dissolving sugar in water, and evaporating salt water.] [Assessment Boundary: Assessment does not include the atomic scale mechanism of evaporation and condensation or defining the unseen particles.]
Measure and graph quantities to provide evidence that regardless of the type of change that occurs when heating, cooling, or mixing substances, the total weight of matter is conserved. [Clarification Statement: Examples of reactions or changes could include phase changes, dissolving, and mixing that form new substances.] [Assessment Boundary: Assessment does not include distinguishing mass and weight.]
Make observations and measurements to identify materials based on their properties. [Clarification Statement: Examples of materials to be identified could include baking soda and other powders, metals, minerals, and liquids. Examples of properties could include color, hardness, reflectivity, electrical conductivity, thermal conductivity, response to magnetic forces, and solubility; density is not intended as an identifiable property.] [Assessment Boundary: Assessment does not include density or distinguishing mass and weight.]
Conduct an investigation to determine whether the mixing of two or more substances results in new substances.