Scatter plot, multiple series (data) help!

I have data like:
Trial One
Brass Wood
Time Veloctiy Time Velocity
Gate 1 0.3876 1.1852 0.2037 1.0791
Gate 2 0.5017 2.3529 0.3203 2.2059
Gate 3 0.5728 3.0189 0.3925 2.8302
Gate 4 0.6322 3.5556 0.4531 3.2609


and I want to make a graph that has both lines. How can I do this?