Welcome to Science! I am the 7th grade science teacher, Mr. Ali, and it is a pleasure to have you all as part of the MS 890 community. Throughout this year we will be exploring various angles of the scientific world ranging from atoms to technological design. As a class we will explore the world while building a community in the classroom! On this page, you will find information about assignments, upcoming quizzes or exams, review materials, and interesting science articles. I am looking forward to an exciting year in science class! If you have any questions, feel free to contact me at Mali17@schools.nyc.gov
Every month I will post an interesting science article on this website. If students read the article and write a reflection on it, they will receive extra credit towards the classwork grade. The reflection must be at least one paragraph and address the following questions: 1. Explain what you find interesting about this article and why. 2. How does this article relate to your life? 3. What did you learn after reading this article?
This is a great opportunity for students to hone in on their reading and writing skills, and ultimately prepare to read higher level scientific articles in high school and college!
ARTICLE #1: Crickets for Breakfast? https://www.sciencenewsforstudents.org/article/crickets-breakfast
ARTICLE #2 : Bacteria and bugs will save us from the zombie apocalypse https://www.sciencenewsforstudents.org/blog/technically-fiction/bacteria-and-bugs-will-save-us-zombie-apocalypse
ARTICLE #3 : How your brain is like a film editor https://www.sciencenewsforstudents.org/article/how-your-brain-is-like-film-editor
Homework set #8 Unit review Science Homework due 2/28/2019 Homework #22 Write one paragraph on the topic you found the hardest in the chemistry unit and why it was so hard for you. Homework #23 Answer the following questions When balancing a chemical reaction, what are the LARGE numbers that we can change? When balancing a chemical reaction, what are the SMALL numbers that we can NOT change? What is the law of conservation of matter? Homework #24 Write one to two paragraphs discussing the question "Which reaction do you think is more important in our lives, Exothermic or Endothermic?" and Explain your reasoning. Homework #25 Click on the link below and Complete The Worksheet break_worksheet.doc
Homework set #7 Science Homework due 2/7/2019 Please make sure your homework is done on LOOSE LEAF if a worksheet is not assigned! Homework #19 Name and state what the four types of chemical reactions are and give one real life analogy for each one. Homework #20 Answer the following questions What type of chemical reaction is photosynthesis? Explain What is the difference between a decomposition and synthesis reaction? Homework #21 Answer the following questions What does a plant need for photosynthesis? Can photosynthesis happen at night? Explain How does photosynthesis impact human life?
Homework set #6 Science Homework due 1/17/2019 Please make sure your homework is done on LOOSE LEAF if a worksheet is not assigned! Homework #16 Write down whether the following reactions are balanced or not. If they are unbalanced state why they are unbalanced. 2H2 + O2 → 2H2O KCl + Br2 → KBr + Cl2 Na2CO3 + 2HCl → 2NaCl + H2O + CO2 2Fe2O3 + 3C → 4Fe + 3CO2 Na + O2 → Na2O Homework #17 Answer the following questions What does the Law of Conservation of Matter tell us about both sides of a reaction? Explain. When balancing a chemical reaction, what are the large numbers that we can change called? What are the small numbers that we cant change called? What is the difference between a reactant and product? Homework #18 Balance the following equations. N2 + H2 ---> NH3 K + Cl2 ---> KCl NF + C2 ---> NC + F2 P4 + O2 ---> P2O3 Homework set #5 Science Homework due 12/20/2018 Please make sure your homework is done on LOOSE LEAF if a worksheet is not assigned! Hw# 13 Write one paragraph discussing the differences between an Endothermic and Exothermic reaction. Hw# 14 1) What are the FIVE signs of a chemical reaction? 2) what is the law of conservation of energy? Hw#15 Write down 4 examples of chemical reactions and what sign tells you a chemical reaction is happening in each of those examples
Homework set # 4 Science Homework due 12/06/2018 Please make sure your homework is done on LOOSE LEAF if a worksheet is not assigned! Hw #10 Write one paragraph discussing the differences between a chemical reaction and a physical reaction. Hw #11 Write down weather the following changes are physical and chemical Glass breaking, Hammering wood together, Rusting bike, Melting butter, Separating sand from a mixture, Bleaching your hair, Frying an egg, Melting ice, Burning leaves, Fireworks exploding, Cutting grass, Crushing a can. Hw#12 In each of the following examples write down which are the REACTANTs and which is the PRODUCT. 1. Eggs, Milk, Sugar, Butter, Cake 2. Glue, Water, Corn starch, Slime 3. Milk, Sugar, Chocolate powder, Chocolate pudding 4. Banana, Strawberry, Almond milk, Smoothie 5. Oil, Eggs, Salt, Fried eggs 6. Oxygen, Hydrogen, Water
Homework set #3 Science Homework due 11/15/2018 Please make sure your homework is done on LOOSE LEAF if a worksheet is not assigned! HW #7 Mixture Questions -1) What are the two types of mixtures and what is the difference between them? - 2) What is the substance that dissolves in a solution called? -3) How can different density of items affect a mixture? HW #8 Separating mixtures questions -1) What is mechanical separation? Give one example 2) How can a magnet be used in separation? 3) Why is it important that we are able to separate mixtures? HW # 9 Oil spill Paragraph Write one paragraph discussing the negative effects of an oil spill on the environment/animals and what is one way we could clean up the oil spill.
Homework set #2 Science Homework due 10/25/2018 Please make sure your homework is done on LOOSE LEAF if a worksheet is not assigned! HW #4 Density Questions -1) A block of aluminum occupies a volume of 15.0 mL and weighs 40.5 g. What is its density? - 2) A rock occupies a volume of 20 cm3 and has a mass of 54 g. Find the density. -3) A sample of seawater weighs 158 g and has a volume of 156 mL. What is the density? HW #5 Separating mixtures virtual lab sheet - https://my.hrw.com/sh2/sh07_10/student/flash/virtual_investigations/hst/mix/hst_mix_vi.html HW # 6 Quiz corrections - Quiz will be returned Monday or Tuesday
My Molecular Journey (Due Monday 9/24 for 702,704)