How to make washing soda
Gather your supplies.
You will need a large metal baking dish (though stone or glass will also work), a one-pound (454 grams) box of baking soda, and a wooden spoon.
Preheat your oven to 400 f (204 c).

Cover the bottom of the baking dish with a thin layer of baking soda. Baking a thinner layer that's about one-quarter inch (0.6 cm) thick will ensure that the process occurs uniformly.

How to handle a negative review
Stay calm.
A negative review can be tough to swallow and you may start to feel angry or defensive. You may also react emotionally if you were not expecting the review to be so poor.

Resist the urge to get upset, yell, or shout. Instead, try to stay calm and collected.

How to change spark plugs in a renault clio mk3
Park up your car on level ground and wait for your engine to cool down.
If the engine is already cool you can begin work on your car.
Disconnect your car battery.

Make sure your battery is disconnected before performing any work on your electrical system. You don't want a shock or even worse to fry your on board computer because of a shock.

How to become an oceanographer
Take as many science and math classes as you can in high school.
It's a good idea to get a head start on your studies if you want to pursue a career in oceanography. Taking advanced math and science classes in high school will ensure that you're properly prepared once you get to college.
Some of these classes may include earth sciences, biology, geology, geography, physics, etc. If the thought of taking these types of courses is not appealing, then oceanography probably isn't the right career path for you.