examples for scientific facts
Answers
Explanation:
A scientific fact is a repeatable careful observation or measurement (by experimentation or other means), also called empirical evidence. These are central to building scientific theories.
EXAMPLE - The Eiffel Tower can be 15 cm taller during the summer
When a substance is heated up, its particles move more and it takes up a larger volume – this is known as thermal expansion. Conversely, a drop in temperature causes it to contract again. The mercury level inside a thermometer, for example, rises and falls as the mercury’s volume changes with the ambient temperature. This effect is most dramatic in gases but occurs in liquids and solids such as iron too. For this reason, large structures such as bridges are built with expansion joints which allow them some leeway to expand and contract without causing any damage.
Answer
There is enough DNA in the average person’s body to stretch from the sun to Pluto and back — 17 times
The average human body carries ten times more bacterial cells than human cells
Some metals are so reactive that they explode on contact with water
Babies have around 100 more bones than adults