Why does a piece of Lego sink in oil but float in water?
The cork is less dense than any of the liquids, so it will float on everything. The Lego brick should sink through the oil, but float on the water and syrup. … The oil is the least dense liquid, so it will float on the water, and the syrup is the densest liquid, so it will sink below the water.
Why does oil float and not sink?
First you should have noticed that when you added the oil to the water they did not mix together. Instead the oil created a layer on the surface of the water. This is because oil is less dense than water and therefore it floats to the surface.
Will a coin float in oil?
Each object sank into the cup until it got to a liquid that was more dense than it. The cork was not very dense at all, so it floated on the surface of the oil. … The penny and screw were very dense; they sank all the way to the bottom of the corn syrup!
Will a cork float in oil and water?
The cork is less dense than any of the liquids, so it will float on everything. Ice has a similar density to oil, and so floats within the oil, but as it melts, the water will sink to the water level.
Does syrup float in water?
Since a cubic centimeter of vegetable oil weighs less than 1 gram, oil will float on water. Corn syrup is more dense than water so 1 cubic centimeter of corn syrup weighs more than 1 gram. Therefore, corn syrup sinks in water.
Does a brick sink or float?
Sometimes it’s pretty easy to tell if a certain object will sink or float. An object like a brick or a stone, which seems heavy for its size, feels like it should sink, and it does sink. Something like a Styrofoam ball, which seems light for its size, feels like it should float, and it does float.
Can a brick float in water?
A small, heavy object has higher density than a large light object. Lego bricks have many air bubbles trapped inside them. The density of the brick with all those bubbles is less than that of water – so the bricks float, no matter how many of them you stick together.
What has to be true for an object to float?
An object floats when the weight force on the object is balanced by the upward push of the water on the object. … If the weight force down is larger than the upward push of the water on the object then the object will sink. If the reverse is true then the object will rise – rising is the opposite of sinking.
What is the best way to tell if something can float in water?
If an object has a higher density than the fluid it is in (fluid can mean liquid or gas), it will sink. If it has a lower density, it will float. Density is determined by an object’s mass and volume. If two objects take up the same volume, but have one has more mass, then it also has a higher density.
What household items float?
Household items, such as: cork, crayon, cotton ball, feather, small plastic toy boat, metal toy car, plastic Easter egg, paper, plastic straw, outdoor twigs, small bars of soap, and crumpled ball of aluminum foil, etc.