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Understanding Science Tools, Measurements, and Safety Practices

This introduction to science covers essential tools and methods for accurate measurements and data analysis. Learn about various scientific instruments, including stopwatches, metersticks, thermometers, and balances crucial for gathering data on solids and liquids. Emphasizing the International System of Units (SI), the guide highlights the importance of standardized measurements, including length, mass, volume, density, and temperature. Additionally, it stresses the importance of safety in laboratory settings by identifying key safety symbols and rules to follow for a secure and effective learning experience.

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Understanding Science Tools, Measurements, and Safety Practices

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  1. Introduction to Science Tools , measurements, and Safety

  2. Objectives: • Identifytools used to collect and analyze data. • Explainthe importance of the International System of Units. • Identifythe appropriate units to use for particular measurements. • Identifysafety symbols. • Bellringer: • List 5 measuring tools used in science for solids and liquids?

  3. Tools in Science • To get the best measurements • You need the proper tools. • Stopwatches • Metersticks • Thermometers • Balances • Tools are also used to: • analyze data. • Calculators • Computers • Even pencils and paper

  4. Making Measurements • The International System of Units (SI) • current name for the metric system. • Used by most scientists and almost all countries. • All SI units are based on the number 10. • Length • SI unit - meter(m).

  5. Mass • Amount of matter that something is made of • SI unit - kilogram (kg) • Volume • Amount of space that something occupies. • Liquids - liters(L) or milliliters(mL) • Solids - cubic meters (m3), cubic centimeters (cm3)

  6. m a s s d e n s i t y = v o l u m e • Density • Amount of matter in a given volume • SI unit – gram per milliliter (g/mL) or grams per cubic centimeter(g/cm3). • Derived quantity! • Temperature • measure of how hot (or cold) something is. • Scientists often use degrees Celsius (°C) as the unit. • SI base unit - Kelvins (K)

  7. Safety Rules • Always follow your teacher’s instructions. • Read lab procedures carefully and thoroughly. • Pay special attention to safety information and know the safety symbols.

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