A star forms when gravity gathers gas and dust in a nebula. Once hydrogen fusion starts in its core, the star releases energy and shines for a very long time. Mass affects its later path. A Sun-like star loses outer layers and leaves a white dwarf. Many massive stars end with a supernova. This is not ordinary burning in air. Safety: Use paper only. No flames, hot objects, compressed gas, or reaction experiment. Stop: Stop at the two broad branches. Exact mass thresholds, nuclear equations, and black-hole details are outside this task.

Materials: Paper; Pencil; Six folded paper cards 1. Write these card texts: gas-and-dust cloud called a nebula; gravity gathers material into a forming star; star shines with hydrogen fusing into helium; Sun-like star expands and sheds outer gas; white dwarf core cools; massive star undergoes a supernova. 2. Arrange the first three cards as a shared starting path. From the shining-star card draw two branches. Label one Sun-like and put the outer-gas and white-dwarf cards there. Label the other massive and place the supernova card there. 3. Draw two hydrogen labels pointing to a helium label beside the shining stage. Write: word diagram only, not a balanced nuclear reaction. Explain that joining light nuclei releases energy. 4. Adult points to the cloud, shining stage, and each ending in turn. Learner gives one sentence for each. Then cover the final cards and retell the two different endings. Done: Finish the branching strip and correctly retell cloud formation, fusion, and two endings. Proof: Keep the strip and fusion note. Note any card order or ending supplied by the adult. Stop: Stop at the two broad branches. Exact mass thresholds, nuclear equations, and black-hole details are outside this task.