Offline science library · use your browser’s Print menu for paper or PDF.

PIP’S STARHAVEN · ACTIVITY SHEET · CHILDREN

Galaxy shape detectives

20 minutes · Paper · Pencil · Colored pencils

Your investigation

  1. Draw three galaxies: a spiral with arms, a rounded ellipse, and an irregular shape.
  2. Draw the same thin spiral disk from its edge and from above. Label them as two views of one model.
  3. Add small dots for stars and shaded patches for gas or dust.
  4. Write a question that a single flat drawing cannot answer.

Think, draw, explain

Can different viewing directions change apparent shape?

Is a galaxy the same kind of object as a star?

Compare your explanation with the grown-up answer guide after you have tried.