Answer:
Explanation:
The mass of the substance is determined by subtracting the first reading from the second. A container holding the substance of interest is placed on the balance and weighed. This is the first reading. The substance to be used is removed from the container and the container weighed again.
Answer:
A. Hydrogen atoms are split in fission.
Explanation:
The sun is powered by fission
Answer:
controlled experiments
Explanation:
Experiments in which all variables are identical except for one are called controlled experiments. This where an observer tests his hypothesis by looking on changes that were brought about by one variable. The results are always dependent on one adjusted variable.
