Midterm extra credit Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Term | Definition |
Matter | is anything that has mass and takes up space |
Atom | is the smallest part of an element that retains the properties of that element |
Democritus | he was an early scientist that said that that if you cut up something you would eventually end up with a particle that you can not divide it farther |
Protons | is a positive charge found with in an atomic nuclei |
Neutrons | is a neutral charge found within an atomic nuclei |
Electrons | is a negative charge that balances the positive charge of the protons in the atomic nuclei |
Bohr | He was a scientist that further developed Rutherfords atomic model |
Elements | It is a pure substance that can’t be separated into simpler substance by physical or chemical means |
Compounds | it is a pure substance composed of two or more different elements joined together by chemical bonds. They can only be separated by chemical means, not physically |
Mixtures | It is a combination of two or more pure substances that aren’t chemically combined |
Heterogeneous mixtures | You can see all the parts not completely combined |
Homogeneous mixtures | You can’t see all the parts appears the same |
Physical change | matter changes in some way |
Chemical change | 2 substances make new substance |
Melting point | is the point where heat is absorbed and makes the solid into a liquid or gas |
Boiling point | is the temp. at which a liquid boils, it will become a gas substance |
Density | is Mass/Volume also it is a property that describes their relationship between the mass of a material and its volume |
Dmitri Mendeleev | He made the periodic table |
Periodic table | shows all the elements in the universe. also organizes the elements by chemical properties |
Atomic number | number of protons |
Symbol | is the abbreviated version of the element |
Atomic weight | is the number of protons and neutrons in the nucleus of an atom |
Period | Each row on the periodic table |
Orbitals | are the pattern the electrons takes to go around the nucleus |
Group | The elements in each group have the some number of electrons in the outer orbital |
Families | 1A is the family made up of alkali metals 2A is made up of alkaline earth metals 7A is made up of the halogens 8A is made up of Noble gases |
Metalloids | Have Metal and nonmetal properties Act as semiconductors Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium, and Polonium are Metalloids |
DNA | Deoxyribonucleic acid |
Double helix | spiral shaped ladder |
Chromosomes | When DNA comes in long strands |
Bases | cytosine, guanine, adenine, and thymine |
Genes | Each one of these small sections of DNA |
Genotype | The set of genes carried by the organism |
Phenotype | The physical expression of the gene |
Punnett Square | A tool which uses the combination of alleles to predict the probability of traits showing up in offspring |
Dominant trait | A trait that will always be expressed in the phenotype, Alleles for dominant traits are represented by capital letters |
Recessive trait | A trait that will always be expressed in the phenotype if two recessive alleles are present |
Mendel | A scientist that cross -pollinated plants for research on genetics |
Miescher | A scientist that isolate DNA from nuclei of leukocyte |
Heredity | The transmission of genetic characters from parents to offspring |
Nuclein | A group of proteins, containing phosphorous, that occur in the nuclei of living cells |
Generation | The term of years |
Leukocytes | A colorless cell that circulates in the blood and body fluids and is involved in counteracting foreign substances and disease |
Created by:
G10024428
Popular Chemistry sets