3.3 Conservation of Energy notes for the Cambridge 9 (8th Grade) Science Curriculum. Students will be able to: 1. Learn that energy cannot be created or destroyed. 2. Understand that because energy is conserved, there is no increase or decrease in energy. 3. Understand that thermal energy is dissipated from hotter places to colder places. All material was taken from the Cambridge Lower Secondary Science Learners Book 9, Second Edition. There is complete teacher slideshow and a student fill i