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Practicing Science: Observing the Natural World of Matter Grades 3-5

Practicing Science: Observing the Natural World of Matter Grades 3-5. Mary Tweedy , Curriculum Support Specialist Keisha Kidd, Curriculum Support Specialist Dr. Millard Lightburn, District Science Supervisor Department of Mathematics and Science Office of Accountability and Transformation.

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Practicing Science: Observing the Natural World of Matter Grades 3-5

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  1. Practicing Science:Observing the Natural World of Matter Grades 3-5 Mary Tweedy, Curriculum Support Specialist Keisha Kidd, Curriculum Support Specialist Dr. Millard Lightburn, District Science Supervisor Department of Mathematicsand Science Office of Accountability and Transformation

  2. Practicing Science:Observing the Natural World of Matter What is matter? The material or “stuff” everything is made of. What are you doing if you are observing matter? Observing matter means to carefully explore all of its properties. Look around the room and identify some matter. What are some physical properties matter can have? Color, texture, odor, shape… What are two properties that all matter share? All matter has mass and takes up space. What did we just use to observe properties of matter?

  3. Five Senses Sight - Looks Touch - Feels Hearing – Sounds when moving… Odor – Smells Tastes Qualitative Observations Measurement Tools Ruler Tape measure Balance Spring Scale Graduated cylinder Thermometer Quantitative Observations Whatdo we use to help us observe?

  4. Observing and Measuring Matter Choose an Object to Observe Choose an Observation Type List as many properties as you can about that object. What do you observe about that object quantitatively? What are all the things you observe directly about….? Describe how this object looks, feels, sounds, and/or smells. Thumb Pencil Book Desk Chair Penny Drop of Water Rock Shell Plant Leaf Flower Starburst candy Other

  5. Investigation One • Open up your bag of objects and place them on the tray. • List each object in your notebook as you observe it. • Use your senses to make qualitative observations. Write down words to describe each object. • Use your measurement tools to make quantitative observations and record for each object. • Look over your observation notes and put all the objects that share a property together in one group. Write down the common property. • What word describes the object(s) left over? If more than one do they have a property in common? • Now classify the objects into another group and do steps 5 and 6.

  6. Properties or characteristics ofMatterList Color Shape Size Luster Texture Mass Weight Length Volume State/Phase (solid, liquid or gas)

  7. Match the Property Being Tested • Does the material stretch and then return to shape? • Does electricity flow when the material is used to complete the circuit? • Is the magnet attracted to the material? • Can a penny scratch the material? • Can you see through the material? • Does the material bend without breaking? • Does the material change when dipped into water? • Absorbent • Elastic • Electrical Conductor • Flexible • Magnetic • Hard • Transparent

  8. Investigation Two Equipment Needed: lab sheet, container of water, flashlight, magnet, circuit (lightbulb & wires & battery in a holder connected) Procedures: Read the test below and predict which properties apply to your group’s six objects. Then conduct the following tests using materials provided in order to identify which properties apply to your group’s six objects. Record results on chart. Compare predictions to results. • Does the material change when dipped into water? • Does the material stretch and then return to shape? • Does electricity flow when the material is used to complete the circuit? • Is the magnet attracted to the material? • Can you scratch the material? (fingernail, penny…) • Can you see through the material? (light travels through) • Does the material bend without breaking? Bonus: Try to think of a new way to classify your group of objects based on the test results.

  9. Investigation Two Make predictions, test and then record test results on lab sheet chart. Compare. Last add an opposite for each property.

  10. PropertiesofMatter List( What can be added?) Color Shape Size Luster Texture Mass Weight Volume State/Phase (solid, liquid or gas) Flexible Elastic Magnetic Conductor of electricity Ability to sink or float in water Ability to Dissolve in a liquid or solubility

  11. Mystery MATTER(Show What You Know) • Pick a small object that will fit in a paper bag. • Make quantitative observations (mass, length, height, volume…) • Make qualitative observations (texture, luster, flexibility, magnetic …) • Use these observations to write a description including properties that will help others identify this mystery matter. • Share your description with classmates and have them guess what your mystery object is.

  12. MysteryMATTERConnected Learning(Choose a mystery object identified and do the following reflection.) • Was there a property that helped you determine the mystery object’s identity easier than other properties? Explain. • Which observations were quantitative? • Which observations were qualitative? • What are you wondering now?

  13. Investigation Three What do we call characteristics that can be observed, measured, or changed without changing the object itself? physical properties They are the things that do not change about an object unless you change the material. Try out the questions below:

  14. Investigation Four • Choose an object to design. • It could be an umbrella, a sneaker, a backpack or something else. • Think about what property the object needs. For example: an umbrella needs to be waterproof. What else? tough, flexible 4. Decide on what would be a good material. • Draw the design and label the materials to be used and their properties.

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