What things give our heat? What objects give make light? Which things can do both? Let's investigate. STEPS: 1. Tap . 2. This activity has 3 pages. Read and follow the instructions carefully for each page. Page 1 - the objects and place them in the correct boxes. Page 2 - Tap and match. Page 3 - Tap to solve the riddles. 3. Tap to submit your work.