Select from options: Continue writing the next sentence.

How to make a lava lamp with household ingredients
Rinse out a large soda or water bottle.
Any tightly sealable container works, but you probably have an empty water bottle laying around somewhere. Try to find one that holds at least 16 ounces or 500 milliliter, so you can clearly see the display.

Select from the following.
(a). Fill the bottle a third of the way with water. Have a bottle on the kitchen counter and a large weight book on the table.
(b). In this article, the most common places you could find a lava lamp are under the bathtub, under a sink (if there's one), or even in your backyard. Cut one half of the soda to size in the bottle.
(c). The larger you keep the glass, the more grainy the lip of the bottle. Measure out about 1/2 a gallon (1.9 liters) of soda.
(d). This method is safe for kids to follow on their own, and much faster and easier than making a permanent lava lamp. Young kids can ask an adult to do the pouring for them.
Answer:
(d).