1. People can board down slopes that would be very difficult to ski. 2. In summer, cool, evergreen-scented air spills down slope a fresh, aromatic tonic. 3. Streams carried rock debris down slope to be deposited in nearby lowlands. 4. :: Many of them move much faster, especially on a down slope . 5. First, gravity makes the water flow in the most direct course down slope . 6. SPRAT moves by rolling but can only do so along level ground or down slopes . 7. As a result, a cavity is formed on the down slope side of the boulder. 8. Boiling water would cause soil particles to bounce and help them to flow down slopes . 9. The surface then experiences a down slope , in the direction that the equipotential has risen. 10. Farther down slope , airport staff, alerted by scientists, scrambled into their vehicles and sped to safety.