Answer:
It is a word to show strong recommendation
Answer:
gives the background and purpose of an experiment.
Explanation:
Science can be defined as a branch of intellectual and practical study which systematically observe a body of fact in relation to the structure and behavior of non-living and living organisms (animals, plants and humans) in the natural world through experiments.
The introduction in a science text gives the background and purpose of an experiment.
I kind of forgot as I learned that last year. sorry
Answer:
B. your peice of cake is missing and your little sister has chocolate stains in her shirt
Explanation:
An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small, they usually are around the size of 100 picometers across. They are so small that accurately predicting their behavior using something called classical physics, if they were tennis balls, for example, It wouldn't be possible for them to exist due to quantum physics. Every atom is composed of a nucleus and one or more electrons bound to the nucleus. The nucleus is made of one or more protons and a number of neutrons. Only the most common variety of hydrogen has no neutrons. More than 99.94% of an atom's mass is in the nucleus. The protons have a positive electric charge, the electrons have a negative electric charge, and the neutrons have no electric charge. If the number of protons and electrons are equal, then the atom is electrically neutral. If an atom has more or fewer electrons than protons, then it has an overall negative or positive charge, FYI these kind of atoms are called "Ions"
