Match the machines with how they make work easier. 1. Inclined plane
2. Screw
3. Wedge
4. Lever
5. Wheel and Axle
6. Pulley

Possible answers:
A. Multiply the distance
B. Multiply the force
C. Multiply the distance and change direction
D. Multiply force & distance and change direction

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water