Solve these clues to fill the grid.
- The action of ___
- 1 Across
- To move on foot at a normal pace
- 7 Across
- Integrated circuit semiconductor chip that performs the bulk of the processing and controls
- 8 Across
- Fine powdery material such as dry earth or pollen that can be blown about in the air
- 9 Across
- A hard glossy mineral consisting of silicon dioxide in crystal form
- 10 Across
- Any of several chemical elements that are usually shiny solids that conduct heat or electricity (plural)
- 11 Across
- Substance used in or made by chemistry (plural)
- 2 Down
- A light truck with an open body and low sides and a tailboard
- 3 Down
- Clear liquid we drink that falls as rain
- 4 Down
- A very tall building with many stories
- 5 Down
- Machine that stores information and runs programs (plural)
- 6 Down