Measure the rock and put it in water for an hour and check its weight, do it for another hour and so on until the weight stays the same
Divide each rock's mass by its volume. The rock with the higher number is denser. To find the volume, measure the rocks in a graduated cylinder, the one that displaces more water is denser.
You use a graduated cylinder to measure the volume of the rock with the water and the water without the rock
improvements in technology like drilling for rock samples and instruments that measure magnetism of the iron in the sea floor rock
To measure the volume of irregularly shaped rocks, you can use the water displacement method. Submerge the rock in a container of water and measure the change in water volume as the rock displaces the water. The difference in water volume before and after submerging the rock will give you the volume of the rock.
Scientists use radioactivity in rock samples to measure the age of the rock by determining the decay of isotopes. By measuring the ratio of parent isotopes to daughter isotopes in a sample, scientists can calculate how much time has passed since the rock formed. This technique is called radiometric dating and is commonly used in geology and archaeology to determine the age of rocks and artifacts.
They recover rock samples from volcanic eruptions.
To measure a rock using a measuring cylinder, you can follow these steps: Fill the measuring cylinder with water up to a marked level. Note down the initial water level. Carefully place the rock into the water, ensuring it is fully submerged. Measure the new water level and calculate the difference to determine the volume of the rock.
To calculate the volume of a rock, you can use the formula for the volume of a sphere (4/3 * pi * r^3) if the rock is spherical, or use the formula for the volume of a rectangular prism (length * width * height) if the rock has a more regular shape. Otherwise, you can measure the volume by water displacement: submerge the rock in water and measure the increase in water level to find its volume.
Use water displacement. Measure water before you put the rock in it, and then again afterwards. Put a measuring cup large enough to hold the rock in a pot large enough to hold the measuring cup and fill the measuring cup to the very top with water. Lower the rock into the measuring cup carefully so that the water flows over and into the pot. Carefully remove the measuring cup with the rock without spilling any additional water into the pot. When you measure the water in the pot it will equal to the volume of the rock (accuracy will depend on how careful you were). This is displacement measuring.
The type of weathering that occurs when rock is broken down as it absorbs water is known as hydration weathering. This process involves the absorption of water into the rock structure, causing it to weaken and break apart over time.
No astronauts have ever been to Mars, and no rock samples have ever been sent to Earth.