Which process is responsible for changing the composition of rock?

erosion

abrasion

chemical weathering

mechanical weathering

Which outdated atomic model could be linked to chocolate chip cookie dough?

Is iron a compound yes or no

3 sources of background radiation and one source of radiation that is not condisderd background radiation

What are some physical properties of a candle

4 elements and their symbols named for planets.

Two skydivers jump out of a plane. As the skydivers are in free fall, the potential energy they possessed at the airplane door Is being converted to kinetic energy True False

What part of an atom has no relative mass

A scientist studies the DNA of three different species. The DNA from species A is more similar to DNA from species B than DNA from species C. Which species are probably the most closely related? Explain your answer.

Gamma rays are waves of energy that have no charge. true false

Describe what a polar covalent bond is and name a common compound that has a polar covalent bond holding it together