OSIRIS-REx

Dante Lauretta. OSIRIS- REx. OSIRIS-Rex is the first U.S. mission to collect a sample from asteroid The goal of the mission is to collect a sample weighing at least from near-Earth asteroid 101955 Bennu and then bring the sample to Earth. It launched in September 2016 , arrived at Bennu in December 2018, and successfully collected a sample in October 2020, and will return in 2023.

Orex-sample-capture. How does OSIRIS-Rex work ? Lockheed Martin developed an innovative first-of-its-kind sample collection method and hardware . OSIRIS-Rex use ( TAGSAM ) device that acts as a “ reverse vacuum,” TAGSAM fired a blast of nitrogen gas into the surface, Stirring rocks and soil into a small collection chamber. Upon arrival,OSIRIS-REx found that Bennu was much rockier than expected In October 2020, OSIRIS- REx collected a sample by high-fiving Bennu with the end of sample arm of the cylindrical device; TAGSAM..

Why do people think that OSIRIS-Rex is one of the most important scientific inventions.

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Doctor Sticker by Dra. Juliana Pupin. Phytochemistry.

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Phytochemistry. Phyto introduction Volatile oils CHO Flavonoids.

500 marks. Practical. Theoretical 250. Oral 100. Mid term.

Phytochemistry. Origin. Definition. Phyton. Chemistry.

2 ry metabolites.

Type 1ry metabolites 2ry metabolites Source ( prescence ) All organisms Specific organisms Examples CHO, fats, proteins, and nucleic acids Volatile oils and alkaloids (pharmacologically active drugs) Importance Essential for life Defense, attractant of detoxifying agents.

1- Gene composition (Heredity). 2- Stage of development ( oncolgy ).

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Phytochemistry. It is the study of phytochemicals that are derived from plants, mainly large numbers of 2 ry metabolites which are found in plants.

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Introduction. 1- Definition 2- Occurrence 3-Importance 4- Preparation 5-quality control.

Definition • The odorous, volatile principles of plant and animal sources are known as volatile oils. They are liquid, volatile oils will evaporate or volatize when exposure at an ordinary temperature and so they are called ethereal oils. They are also called as essential oils as they are essences or concentrated constituents of the plants..

Volatile oils Fixed oils Secondary metabolites Primary metabolites Volatile oils are volatile at room temperature. On the other hand fixed oils are not volatile at room temp. Obtained by distillation Obtained by extraction Volatile oils when evaporated do not leave any spot Fixed oils leave spot after evaporation Volatile oils are mixtures of oxygenated and non oxygenated terpene hydrocarbon. Mixture of fatty acids with glycerol Low melting point high melting point.

Occurrence: mostly in plants in specific structures Glandular hairs e.g. labiatea Oil cells e.g. lauraceae Oil ducts or vittae e.g. umbellifereae Oil glands( cavities) e.g. rutaceae Importacnce : I-Physiological significance 1- detoxification products. 2-solvents for wound resins. 3- attractants: insects attraraction aiding in cross pollination of the flowers 4- protectants: as defencive agent for repelling of insect and herbviorous ..

Act responsibly in the science classroom / lab. Never fool around in lab. 2 . Follow all written and verbal instructions carefully. Ask your teacher if you do not understand. Never work alone. Your teacher must be present during labs. 4 . Do not touch equipment or chemicals in the lab until your teacher gives instructions. 5 . Do not eat, drink or chew gum in the science classroom / lab. 6 . Do not drink from lab containers. 7 . Wear your safety glasses when instructed to do so by your teacher. 8 . Keep your work area clean and tidy . 9. Keep aisles clear. Push your chair under the desk when not in use. 10 . Know how to use and where to find all safety equipment including the first aid kit, eyewash station, safety shower, fire extinguisher, and fire blanket. 11 . Know where the fire alarm and the exits are located. a. Gas must be turned off. b. Electrical equipment should be turned off. 12 . Dispose of all waste properly and according to your teacher’s instructions. a. Never mix chemicals in sink drains. Sinks are to be used only for water and those solutions designated by the instructor. b. Solid chemicals, metals, matches, filter paper, and all other insoluble materials are to be disposed of in the proper waste containers, not in the sink. c. Check the label of all waste containers twice before adding your chemical waste to the container. 13 . Keep hands away from face, eyes, mouth and body while using chemicals or preserved specimens. Wash your hands with soap and water after performing all experiments. Clean (with detergent), rinse, and wipe dry all work surfaces (including the sink) and apparatus at the end of the experiment. Return all equipment clean and in working order to the proper storage area. 14 . Students are never permitted in the science storage rooms or preparation areas unless given specific permission by their instructor.

CLOTHING 17. Any time chemicals, heat, or glassware are used, students will wear laboratory goggles. There will be no exceptions to this rule! 18. Notify your teacher if you are wearing contact lenses prior to the lab activity. 19. Dress properly during a laboratory activity. a. Long hair, dangling jewelry, and loose or baggy clothing are a hazard in the laboratory. b. Long hair must be tied back and dangling jewelry and loose or baggy clothing must be secured. c. Shoes must completely cover the foot. No sandals allowed. 20. Lab aprons have been provided for your use and should be worn during laboratory activities. ACCIDENTS AND INJURIES 21. Report any accident (spill, breakage, etc.) or injury (cut, burn, etc.) to the teacher immediately, no matter how trivial it may appear. 22. If you or your lab partner is hurt, immediately alert the instructor. 23. If a chemical should splash in your eye(s) or on your skin, immediately flush with running water from the eyewash station or safety shower for at least 20 minutes. Notify the instructor immediately. HANDLING CHEMICALS 24. All chemicals in the laboratory are to be considered dangerous. Do not touch, taste, or smell any chemicals unless specifically instructed to do so. The proper technique for smelling chemical fumes will be demonstrated to you. 25. Check the label on chemical bottles twice before removing any of the contents. Take only as much chemical as you need. 26. Never return unused chemicals to their original containers. 27. Beware of what may appear to be drops of water on laboratory benches. They may be a corrosive liquid (acid or base). 28. When transferring chemicals from one container to another, hold the containers away from your body. 29. Never remove chemicals or other materials from the laboratory area. 30. Take great care when transporting materials and other substances from one part of the laboratory to another. Hold them securely and walk carefully. Fair Lawn Middle School Safety Rules for Science Labs Page 3 of 4 HANDLING GLASSWARE AND EQUIPMENT 31. Never handle broken glass with your bare hands. Inform the teacher when glass breaks. You may be instructed to use a brush and dustpan to clean up broken glass. Place broken or waste glassware in the designated glass disposal container. 32. Inserting and removing glass tubing from rubber stoppers can be dangerous. a. Always lubricate glassware (tubing, thistle tubes, thermometers, etc.) before attempting to insert it in a stopper. b. Always protect your hands with towels or cotton gloves when inserting glass tubing into, or removing it from, a rubber stopper. c. If a piece of glassware becomes “frozen” in a stopper, take it to your instructor for removal. 33. When removing an electrical plug from its socket, grasp the plug, not the electrical cord. Hands must be completely dry before touching an electrical switch, plug, or outlet. 34. Examine glassware before each use. Never use chipped or cracked glassware. Never use dirty glassware. 35. Report damaged electrical equipment immediately. Look for things such as frayed cords, exposed wires, and loose connections. Do not use damaged electrical equipment. 36. If you do not understand how to use a piece of equipment, ask the instructor for help. 37. Do not immerse hot glassware in cold water; it may shatter. HEATING SUBSTANCES 38. Exercise extreme caution when using a gas burner. a. Take care that hair, clothing and hands are a safe distance from the flame at all times. b. Do not put any substance into the flame unless specifically instructed to do so. c. Never reach over an exposed flame. d. Light gas burners only as instructed by the teacher. 39. Never leave a lit burner unattended. Never leave anything that is being heated or is visibly reacting unattended. Always turn the burner or hot plate off when not in use. 40. You will be instructed in the proper method of heating and boiling liquids in test tubes. Do not point the open end of a test tube being heated at yourself or anyone else. 41. Heated metals and glass remain very hot for a long time. They should be set aside to cool and picked up with caution. a. Use tongs or heat-protective gloves if necessary. Allow time for the glass to cool before further handling. b. Hot and cold glass have the same visual appearance. c. Determine if an object is hot by bringing the back of your hand close to it prior to grasping it. 42. Never look into a container that is being heated. 43. Do not place hot apparatus directly on the laboratory desk. Always use an insulating pad. Allow plenty of time for hot apparatus to cool before touching it..

Important lab safety rules graphic. Know the location Of safety equipment llnportant Lab Safety Rules Leave experiments at the lab Follow the instructions Dress appropriately Know what to do in case of an accident Don't taste or sniff chemicals Don't play mad scientist Don't eat or drink in lab Dispose of waste properly Don't experiment on yourself ThoughtCo.

Important lab safety rules. . . . abstract. . Plant Garden Sticker.

Dress code. First aid. General safety. Clean up. chemicals.

Dress code. 2-Safty gogggles must be worn whenever working with chemicals, heat, sharp objects, or any substance that might get in your eyes.

2- wear gloves when handling with strong chemicals.

3-tie long hair, don’t hanging jewelry that can touch heat or chemical source.

4-open-tied shoes aren't appropriate for the lab. Wear sneakers.

General safty. 5- be quiet in lab. Never horse around when working in the laboratory.

6- read all directions or an investigation and follow all instructions exactly as written..

7- do not handle any lab equipment without permission. Some materials should only be handled by the teacher.

9- no food or drinks are allowed during laboratory activities,t his includes gum..

10- keep the lab area clean and free of unnecessary books, papers, coats, backpacks, and equipment..

abstract. . 15- point test tubes that are being heated away rom yourself and away from others. Chemicals can splash, boil, or even explode out o a heated tube..

11- notify us if you have any medical problems, including allergies or asthma..

Doctor Sticker by Dra. Juliana Pupin. 25-clean your work area and return all equipment to its proper place.

9- keep the lab area clean and free of unnecessary books, papers, coats, backpacks, and equipment..

General safty. 5- be serious,alert . Never horse around when working in the laboratory.

21. Properly dispose o waste-never put materials down the sink or in the regular trash without the instruction of your teacher.