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2014 Final Exam SG
integrated science final exam study guide 2014
| Question | Answer |
|---|---|
| science is different from other subjects because it relies on testing what? | explanations |
| the work of a scientist usually begins with what? | observations |
| information gathered during observations or experiments is known as what? | data |
| a scientific what can be tested by experiments or observations? | hypothesis |
| a theory may be _______ or replaced | revised |
| theories unify a broad range of observations and __________ | hypotheses |
| what is a bias? | a personal preference; point of view |
| what are the characteristics of all living things? | use energy, develop and grow over time, maintain themselves, reproduce and evolve |
| what are the 3 particles that make up an atom? | protons, electrons, neutrons |
| what is found in the space surrounding the nucleus of an atom? | electrons |
| ___________ particles are particles that are smaller than an atom | subatomic |
| an atom's mass number is a combination on the number of __________ and ___________ the atom has | protons, electrons |
| an atom's ________ _________ is the same as the number of protons the atom has | atomic number |
| a __________ is a substance made by combining 2 or more elements | compound |
| how many atoms of hydrogen and oxygen are in 1 molecule of water? | 2 hydrogen. 1 oxygen |
| a _______ is a mixture in which the substances are evenly spread out | solution |
| when salt is dissolved into water, water is the ________ and salt is the __________ | solvent; solute |
| 3 phases of matter | solid, liquid, gas |
| liquid | substance that has a definite volume, but not a definite shape |
| solid | substance that has a definite volume and definite shape |
| gas | substance that has no definite shape or volume |
| group/family | vertical columns on the periodic table |
| period | horizontal rows on the periodic table |
| element | material consisting of only 1 type of atom |
| the cell nucleus stores | dna |
| alleles | different forms of a gene |
| physical property | property that describes physical characteristics of something |
| chemical property | something that characterizes substances ability to react with other substances |
| chemical change | reaction where something new is formed |
| physical change | change in state or appearance; nothing new is formed |
| what is the diffusion of water across a selectively permeable membrane? | osmosis |
| the cell membrane functions to regulate the ________ of materials into and out of the cell | passage |
| ______________ requires energy to move molecules across the membrane | active transport |
| the relatively constant internal physical conditions of an organism is known as what? | homeostasis |
| what is the first phase of mitosis? | prophase |
| gametes are produced by what process? | meiosis |
| during the cell cycle, the chromosomes are only visible during | interphase |
| sexual reproduction provides genetic __________ which is an advantage over asexual reproduction. | diversity |
| one difference between cell division in plant and animal cells is that plant cells have a ____________ | cell plate |
| mitosis results in the formation of __________ | diploid cells |
| meiosis results in the formation of __________ | haploid cells |
| at the end of meiosis, the result is ____ genetically ________ cells | 4; daughter |
| mitosis happens during the _______ phase of the cell cycle | m |
| dna is replicated during the ________ phase of the cell cycle | s |
| what converts energy in a plant cell? | mitochondria |
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Tyl3r10959
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