Across
- 3. Organ that pumps blood throughout the body (5 letters)
- 4. Planet closest to the sun (7 letters)
- 5. The star at the center of our solar system (3 letters)
- 6. The phase of matter with a definite volume but no fixed shape (6 letters)
Down
- 1. A simple machine that consists of a bar that pivots on a fulcrum (5 letters)
- 2. Force that opposes the motion of objects (8 letters)
- 5. The human body's largest organ (4 letters)