Which statement about the scientific veiws is correct?
a: changes in scientific thought show that the general public cannot rely on science.
b: changes in scientific thought demonstrate a key strength of science: the ability to self-correct and improve.
c: scientific thought and intrepretations never change over time.
d: changed in scientific thought are usually rapid and drastic

When the volume and number of particles of a gas are constant which of the following is also constant

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.

What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures