Here's how to write -0.010 in scientific notation:

1. Move the decimal point: Move the decimal point two places to the right, resulting in -1.0.

2. Count the moves: You moved the decimal point two places to the right, so the exponent of 10 will be -2.

3. Combine the results: -1.0 x 10^-2

Therefore, -0.010 in scientific notation is -1.0 x 10^-2.