In this laboratory investigation, students explored the structure of molecules by constructing three-dimensional models using clay to represent atoms and toothpicks to represent chemical bonds. Working collaboratively, students applied their understanding of atomic structure and chemical formulas to build a variety of molecules accurately.

To complete the task, students developed a colour-coding system to identify different elements and were required to use the correct number and arrangement of atoms in each model. They then analysed the molecules they had created, describing their composition and explaining how atoms combine to form compounds. The activity provided a hands-on opportunity to reinforce key chemistry concepts while developing students' problem-solving, communication, and scientific reasoning skills.

Students investigated two important techniques used to separate mixtures: filtration and evaporation. Through a series of hands-on experiments, students explored how differences in the physical properties of substances can be used to separate them effectively.

Using filter funnels and filter paper, students separated insoluble materials from water before carrying out an evaporation experiment to recover dissolved salt from a salt-water solution. Throughout the investigation, students recorded their observations, analysed their results, and drew conclusions about the effectiveness of each separation method. The practical activities helped reinforce key scientific concepts while developing students' observational, analytical, and laboratory skills.

In this hands-on science project, students explored the principles of solar energy by designing and constructing their own solar ovens. Using simple materials and an understanding of heat transfer, reflection, and insulation, students worked in teams to create devices capable of capturing and retaining the Sun’s energy.

After building their ovens, students tested and evaluated their designs, making observations about which features improved performance and efficiency. The project encouraged creativity, problem-solving, and scientific thinking while demonstrating how renewable energy can be used to solve real-world challenges. Through the design, construction, and testing process, students gained a deeper understanding of sustainable energy and the practical applications of science in everyday life.

The Grades 7–9 Maths Problem-Solving Challenge combines mathematics, teamwork, and engineering in an exciting inter-class competition. Students work in teams to solve mathematical problems and earn points, which are then used to purchase materials for a design-and-build challenge.

Using strategic planning and problem-solving skills, teams construct structures designed to be both tall and strong, testing their ability to apply mathematical thinking in a practical context. The most successful teams progress to a final round, where they compete against students from other year groups in an even greater challenge. The event promotes collaboration, creativity, critical thinking, and resilience while demonstrating the real-world applications of mathematics.