Metric review
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The document summarizes key concepts in the International System of Units (SI) including units for mass, volume, length, density, prefixes, and temperature conversion. It explains that the SI system is used worldwide except in the United States. Mass is a measure of matter and does not change with location, while weight is the measure of gravity holding an object down and varies by location. The freezing point of water is 0 degrees Celsius or 32 degrees Fahrenheit, and the boiling point is 100 degrees Celsius or 212 degrees Fahrenheit.
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This document outlines a challenge for students to build a bridge spanning 20 centimeters using only 25 drinking straws and masking tape. The bridge must not touch anything between the two book stacks marking the span. Students will first build their bridge, then test it by adding weight until it fails, with the goal of supporting at least 2.5 pounds.
Chapter 3 section 3 notes
1. Metabolism is the total of all chemical reactions in an organism and involves enzymes to break down or build molecules. Photosynthesis and cellular respiration are key metabolic pathways.
2. Photosynthesis uses chlorophyll, carbon dioxide, water and sunlight to produce glucose in producers like plants. Respiration breaks down glucose and other foods to release energy in all organisms.
3. Photosynthesis produces excess glucose that is stored as starches or other carbohydrates, which are then consumed as food by animals and used for cellular respiration which releases energy and produces carbon dioxide and water. Photosynthesis and respiration are thus directly linked.
Microscope review
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Chapter 3 section 2 notes (moving cellular material)
This document discusses how cells transport materials across their selectively permeable membranes. It describes three main types of transport: passive transport which includes diffusion and osmosis and moves substances down concentration gradients without energy; facilitated diffusion which uses transport proteins to move larger molecules; and active transport which moves substances against concentration gradients using energy from ATP with the help of transport proteins. Endocytosis and exocytosis are also covered as forms of active transport where large particles enter or leave cells through membrane invagination and budding.
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This document lists 15 key vocabulary terms from Chapter 3 of a 7th grade science textbook, including types of transport like active transport, diffusion, endocytosis, exocytosis, and osmosis. It also includes terms related to chemical processes in living things like metabolism, photosynthesis, respiration, enzymes, and organic and inorganic compounds.
Chapter 3 section 1 (chemistry of life)
This document provides an overview of key chemistry concepts related to life. It discusses the structure of atoms and defines elements, compounds, and mixtures. The six main elements that make up living matter are identified as oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Organic compounds important for life, including carbohydrates, lipids, proteins, and nucleic acids, are introduced along with their functions. Water is emphasized as the most important inorganic compound for living things.
Chapter 2 section 3 (viruses) 2011
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Csi training : Toolmarks and
This document provides information about firearms and toolmarks analysis in crime scene investigations. It describes key parts of guns like the barrel, cartridge case, slide, and firing pin. It explains how guns work and the components of cartridges, including the primer, smokeless gunpowder, and projectile. It also details characteristics of bullets like rifling impressions, striations, caliber and rifling number that can be analyzed to determine if a specific gun was involved. Firearms examiners analyze both class characteristics common to a brand and individual characteristics unique to a single firearm.
CSI Toolmarks etc.
This document provides information about firearms and toolmarks analysis in crime scene investigations. It describes key parts of guns like the barrel, cartridge case, slide, and firing pin. It explains how guns work and the components of cartridges, including the primer, smokeless gunpowder, and projectile. It also details characteristics of bullets like rifling impressions, striations, caliber and rifling number that examiners analyze to determine if a specific gun was involved in a shooting. Class characteristics refer to marks that are common to a brand or type of firearm, while individual characteristics are unique to a single firearm.
Chapter 2 section 2 (2011)
This document discusses the history and development of microscopy and the cell theory. It begins by describing early microscopes and the scientists who first observed cells. It then explains the different types of lenses used in microscopes and the various microscope types, including compound light microscopes and electron microscopes. Finally, it outlines the cell theory proposed by early biologists that all living things are made of cells, cells are the basic unit of life, and cells come only from preexisting cells.
Chapter 2 vocabulary student (2012 book)
This document contains a list of 15 science terms related to cells and cell structures that are defined in the 7th grade science textbook. The terms include components of cells like the cell membrane, nucleus, mitochondria and organelles. It also includes broader concepts like the cell theory, tissues, and host cells that are explained in Chapter 2. The list was provided by the 7th grade science teacher, Mr. Motuk, for his classroom.
Chapter 2 section 1 (2011)
This document summarizes key aspects of cell structure and organization. It begins by outlining common traits of cells, such as the presence of a cell membrane and cytoplasm in all cells. It then compares differences in cell size, shape, and types (prokaryotic vs. eukaryotic). The remainder of the document details the structure and function of various cell organelles, including the nucleus, chloroplasts, mitochondria, ribosomes, endoplasmic reticulum, Golgi bodies, vacuoles, and lysosomes. It concludes by contrasting the characteristics of plant and animal cells.
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Chapter 3 section 2 notes (moving cellular material)
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Metric review
- 1. Chapter 1: Metric Review Measurement
- 2. A. International System of Units (SI) 1. Started by scientists in the 1970’s. 2. Based on the #10 3. Used by most of the world (Not the U.S.) B. Key Terms in the SI system. 1. Mass: Measure of the amount of matter in an object. Does not change with location. a. SI units for mass is the gram.
- 3. 2. Weight: The measure of the amount of gravity holding an object down, changes daily based on location of the object. a. Closer to the center of the Earth, the more the object weighs. b. The SI unit for weight is the NEWTON. 3. Volume: The amount of space occupied by an object. a. SI units is LITERS. 4. Length: A measure of distance a. SI unit: Meters 5. SI system uses three main units: Liters, Meters, Grams.
- 4. 6. Density= Mass/ Volume a. Density is how much stuff is in how much space. b. Density will determine if something can float on water. c. If the density of an object (like most people) is less than the density of water (density of water is 1)..then they will float.
- 5. C. Prefixes used in the SI System. How to Prefix Abbreviation Multiplier Remember for prefix King Kilo k (kg, km) 1000 Henry Hecto h (hm, hg) 100 Died Deca da (dag, dam) 10 By Base None (g, m, l) 1 Single letters!! Drinking deci d (dm, dg) 1/10 Chocolate centi c (cm, cl, cg) 1/100 Milk milli m (ml, mm, 1/1000 mg)
- 6. D. Temperature (International System) 1. The U.S is the only major country to use the Fahrenheit Scale. 2. Almost all other countries use Celsius to measure temperature. E. Converting Temperatures 1. Fahrenheit to Celsius a. (F – 32) / 1.8 2. Celsius to Fahrenheit a. (Celsius X 1.8) + 32
- 7. E. Freezing Point 1. Point at which a liquid becomes a solid 2. Freezing point of water : a. 0 degrees Celsius b. 32 degrees Fahrenheit F. Boiling Point 1. Point at which a liquid becomes a gas. 2. Boiling point of water: a. 100 degrees Celsius b. 212 degrees Fahrenheit.