Chemistry Unit 1: Measurement, Matter, and the Laboratory
- Develop your understanding of the nature of science as it pertains to the physical world.
- Understand and describe, qualitatively and quantitatively, the chemical nature of matter and apply your understanding to natural phenomena you observe in everyday life
- Better use technology in your learning, becoming a better digital citizen
Course Essential Questions
- How can we study things that are to small to see?1
- How might scientific inquiry be used to investigation the natural world?
- How can I use my experience in chemistry to learn to think and communicate clearly, logically, and critically in preparation for college and a career?
- How can I best assess my own learning and progress?
Unit Essential Questions
- Aren't all chemicals dangerous? How can we work safely with chemicals?
- How are the basic concepts, skills, and understandings in chemistry related to one another? interrelated?
- How are the properties of compounds, elements, solutions, mixtures important to our work with these substances?
- How can properties of atter be measured and described?
- In what ways can data be used to visualize, display, and share new information?
- Practicing lab safety is foundational to all lab work.
- The SI measurement system is used by scientists worldwide.
- Chemical and physical properties are described using recorded observations and measurements that are both precise and accurate.
- Measurements and observations are analyzed using mathematical processes to discover connections and trends.
- Calculations and analysis are the justification for your results.
|Lab Safety and Technique: Students will be able to......
- Demonstrate the use of goggles and aprons. Know when to wear them.
- Help one another practice safety, including use of goggles and aprons.
- Use Safety Data Sheets to understand the propertues of substances used in lab and prepare to use those substances safely.
- Work safely in lab, making good decisions.
- Describe the use of each piece of glassware and equipment before using it.
- Ask for a consultation if unsure of a procedure or piece of equipment.
- Demonstrate procedures for weighing, measuring volume, removing a chemical from a stock bottle, pouring solutions, measuring pH with paper and a meter, lighting a Bunsen burner and using it to heat various substances in different vessels, using a hot plate, and appropriate use and care of all lab equipment.
- Keep the work area neat, clean, and safe.
|Measurement and Analysis Skils: Students will be able to....
- State the prefixes, values, and relative sizes for milli- , centi- , and kilo- to use with the SI units grams, liters, meters as equalities.
- State 5 base (fundamental) SI units used in chemistry and how to use them both in lab and in calculations.
- Measure mass, length, and volume in SI units, with appropriate precision, and record the measurement with the correct significant digits.
- Describe measurements as accurate and/or precise, and explain your reasoning.
- Write a ratio from an equality, express the ratio as a fraction, and use the fraction as a conversion factor.
- Use dimensional analysis to convert between units in problem-solving.
- Use multiple conversion factors in dimensional analysis.
- Use scientific notation (standard form) in calculations for numbers less than as well as greater than 1.
- Use scientific notation to express significant figures in numbers with leading or trailing zeros
- Explain the difference between derived units and fundamental units.
- Describe some derived units used in chemistry (ex. volume, density) and how to use them.
- Define density as a relationshp between the mass and volume of an object or substance.
- Write density as a ratio of mass per unit volume; as a conversion factor
- Use the density formula to find mass or volume of a known or unknown substance.
- Use the units for density as a conversion factor. Use algebra to rearrange the density equation to solve for any of the 3 variables.
- Use dimensional analysis together with mathematical equations to correctly express the solution to a calculation.
|Observation, Description, and Analysis of Matter: Students will be able to....
- Describe the structure of a polymer, using sodium alginate "gummy worms" as an example.
- Describe the bonding in a polymer.
- Describe the differences between pure substances, mixtures, solutions, elements, and compounds using the terms heterogeneous and homogeneous.
- Sketch and interpret particle models of pure substances, mixtures, solutions, elements, and compounds.
- Describe each processes of interconversion of states of matter in words and in particles, using a sketch.
- Describe each process of interconversion in terms of energy (thermal) lost or gained.
- Use both element names and symbols for 48 common elements, using periodic table with both names and symbols. List common substances containing some of the elements.
- Three basic laws describe how matter behaves in chemical reactions. List and describe each.
|Academic Vocabulary: Bricks
||Academic Vocabulary: Mortar
- SI system
- fundamental unit
- derived unit
- Scientific notation
- Conversion factor
- significant figures
- dimensional analysis
- particle model
- chemical energy
- thermal energy
- pure substance
- chemical reaction
- physical change
- chemical bond
- list; state
- law (in science)