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Science semester tes
| Question | Answer |
|---|---|
| Geology | |
| Applied science | |
| Scientists make models of events or objects | |
| Making an observation | |
| All experiments ate observations of real events | |
| Radio telescope | |
| Line graph | |
| Bar graph | |
| Pie chart | |
| Four | |
| How close the value is to the true value | |
| Life,physical, and Earth science | |
| Is close to the true value | |
| Thinking logically to solve a problem | |
| Kelvin | |
| 3 | |
| The number of protons in the nucleus | |
| Soduim | |
| Can conduct hear and electricity under certain conditions | |
| Magnesium is located to the right of soduim because soduim has | More protons |
| Hhhhhhhhhh | |
| Technology can be be defined as | |
| Scientific theories can be changed or replaced when | |
| The first step in scientific method is usually | |
| What does it mean to say that no experiment is a failure | |
| Which instrument had been used to detect the oldest most distant objects in the solar system | |
| Which graph best shows a change in data over time | |
| Which type of graph best shows a comparison of several items or events | |
| Which type of graph best shows data that are parts of a whole | |
| How many significant figures are in 7.357 | |
| Accuracy is judged by | |
| The main branches of natural science are | |
| A measurement that is accurate is one that | |
| An important science skill is critical thinking skill this means | |
| The SI unit for measuring temperature is the | |
| You are asked to find the area of a room that is 4.56 m long and 5.668 m wide how many significant figures should you show in your answers | |
| The order of elements in the periodic table is based on | |
| Which of the following elements is an alkali metal | |
| Semiconductors are elements that | |
| How was Mendeleev’s periodic table arranged | By increasing atomic mass |
| What is Mendeleev known for? | |
| Gaps in hurst periodic table because | No known elements fit there |
| Valence electrons | |
| Ions | |
| Semiconductors | |
| Metals | |
| Metals | |
| Brittle | |
| It has on valence electron | |
| They are highly reactive | |
| Atomic mass | |
| Atomic number | |
| Valence electrons | |
| Losing or gaining electrons | |
| Semiconductors | |
| Their s and p orbitals are filled |