$0.006\times 0.0025$ is equal to:

Let's convert the decimals into scientific scientific notation or fractional values:
$$0.006=6\times 10^{-3}$$

$$0.0025=25\times 10^{-4}$$

Multiply the values together:

$$\text{Product}=(6\times 10^{-3})\times (25\times 10^{-4})$$

$$\text{Product}=(6\times 25)\times 10^{-3+(-4)}$$

$$\text{Product}=150\times 10^{-7}$$

Convert the result back into standard scientific notation layout:

$$\text{Product}=1.5\times 10^2\times 10^{-7}=1.5\times 10^{-5}$$