vocabulary terms 1
What is a small particle of chemical matter?
Atom
What is anything that has mass and takes up space?
Matter
What is a type of matter that is the same throughout?
Substance
What are three examples of a physical change?
Answers will vary
The Amazon rainforest produces what percent of the world’s oxygen supply?
20%
What are tiny pieces of matter that are too small to be seen?
Particles
What is a substance made of a single type of atom?
Element
What is to separate and spread out particles of matter into another substance?
Dissolve
What are three examples of a chemical change?
Answers will vary
1/4 of the bones in your body are all found in what part of your body?
Your feet
The adult body has 26 bones in the feet out of a total of 206 bones in your body.
What is a substance made of one or more kinds of atoms joint together by chemical bonds?
Molecule
What is a combination of different type types of matter that can usually be separated back into its original parts?
Mixture
What is information that helps answer a question, support a claim, or solve the problem?
Evidence
How would you define an element?
An element is a pure substance that cannot be broken down into simpler chemical substances. Every element consists of only one type of atom, which is defined by the unique number of protons in its nucleus, known as its atomic number. The elements are organized by their atomic number on the periodic table,where they are arranged based on their properties. Examples of elements include hydrogen (H) and oxygen (O), which can combine to form the compound water
The number of these in an atom determine which element it is.
Protons
For example, all atoms with 1 proton are hydrogen, while all atoms with 5 protons are boron.
What is matter with indefinite volume and shape, in which the particles move around freely and expand to fill any container?
Gas
What is matter with definite shape and volume, in which the particles are rigidly arranged in place?
Solid
What is a change that occurs when matter changes form (shape, size) but no new type of matter is formed?
Physical change
What is ONE difference between an atom and a molecule that has not been mentioned yet?
Answers may vary
Who stated that matter was made of small particles called atoms?
John Dalton
In the early 1800s, John Dalton established the modern atomic theory, providing a scientific and experimental foundation for the understanding of matter and paving the way for future discoveries about atomic structure.
What is the difference between a physical and chemical change?
The key difference is that a physical change alters a substance's form but not its chemical identity, while a chemical change forms entirely new substances with different chemical compositions. Physical changes can include changes in size, shape, or state (like melting or boiling), and are often reversible. Chemical changes are typically irreversible and involve breaking or forming chemical bonds, resulting in new substances with new properties.
What is the result when two or more types of matter interact to form a new type of matter?
Chemical change
What is matter with definite volume but indefinite shape, in which the particles move around each other freely but do not expand to fill any container?
Liquid
What is ONE difference between an atom and a molecule that has not been mentioned yet?
Answers my vary
Nearly 85% of all plant life on earth is found where?
The ocean.