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Science Vocabulary

Science Vocabulary. Week 2. Meter. Metric unit of length. Liter. Metric unit of volume. Gram. Metric unit of mass. Volume. The amount of space an object occupies. Mass. Amount of matter in an object. Hypothesis.

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Science Vocabulary

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  1. Science Vocabulary Week 2

  2. Meter • Metric unit of length

  3. Liter • Metric unit of volume

  4. Gram • Metric unit of mass

  5. Volume • The amount of space an object occupies

  6. Mass • Amount of matter in an object

  7. Hypothesis • Reasonable guess that can be tested and is based on what is known and what is observed.

  8. Scientific Theory • A possible explanation for repeatedly observed patterns in nature supported by observations and results from many investigations.

  9. Variable • Any factor that can affect the results of an experiment

  10. Independent variable • In an experiment, the variable that is manipulated or controlled by the experimenter.

  11. Dependent Variable • In an experiment, the variable that responds to changes in the independent variable; the variable being measured.

  12. Science Vocabulary Week 3

  13. 1) matter • Anything that has mass and takes up space.

  14. 2) Law of conservation of matter • States that matter is not created or destroyed but only changes its form

  15. 3) density • Physical property of matter that can be found by dividing the matter’s mass by its volume

  16. 4) Chemical property • Characteristic of something that permits its change to something new

  17. 5) Physical property • Any characteristic of matter – such as color, shape, and taste – that can be detected by the senses without changing the identity of the matter

  18. 6) gas • Matter that does not have a definite shape or volume; has particles that move at high speeds in all directions

  19. 7) solid • A substance with a definite shape and volume

  20. 8) liquid • A substance that has a definite volume but no definite shape

  21. 9) Chemical change • Any change of a material into a new material with different properties

  22. 10) Physical change • Any change in the size, shape, form, or state of matter in which the matter’s identity remains the same

  23. Science Vocabulary Week 4

  24. 1) Precision • A description of how close measurements are to each other

  25. 2) Accuracy • Compares a measurement to the true value

  26. 3) Meniscus • The curve seen at the top of a liquid in response to its container

  27. 4) Observation • an act or instance of noticing or perceiving; regarding attentively or watching; the habit of observing or noticing.

  28. 5) Mass • Measure of the amount of matter making up an object

  29. 6) Weight • A measure of the pull of gravity on the mass of an object

  30. 7) Density • Physical property that compares the mass of a substance per unit volume

  31. 8) Balance • Tool used for measuring mass

  32. 9) Volume • The amount of space matter occupies

  33. 10) Graduated Cylinder • Tool used to measure volume

  34. Science Vocabulary Week 5

  35. 1) atom • The basic building block of all matter that is the smallest unit of an element that still has the chemical properties of that element.

  36. 2) molecule • Smallest unit of a compound; formed when atoms join

  37. 3) States of matter • Also called phases of matter; solid, liquid, gas, and plasma

  38. 4) Solid • Have a fixed shape and a fixed volume.

  39. 5) Liquid • Have no fixed shape, they take the shape of their container, but they do have a fixed volume.

  40. 6) Gas • No fixed shape or volume, gases take the shape of their container and completely fill it.

  41. 7) Physical properties • A characteristic of a substance that can be observed directly or measured with a tool without changing the composition of the substance. Examples include: volume, mass, weight, density, texture, and color

  42. 8) Physical change • Any change in a substance in which the composition of the substance does not change. Examples include: stretching a rubber band, smashing a pumpkin, melting ice, and slicing a carrot.

  43. 9) Pure substance • a kind of matter that cannot be separated into other kinds of matter by any physical or chemical process

  44. 10) Compound • A pure substance composed of more than one type of element chemically combined in a fixed proportion

  45. Week 6 Vocabulary Yeah!

  46. 1) Uniform • without variations in detail; constant; unvarying; undeviating

  47. 2) reactivity • the ability of an atom, molecule, or compound to undergo a chemical reaction with another atom, molecule, or compound.

  48. 3) combustibility • capable of catching fire and burning; flammable

  49. 4) viscosity • the property of a fluid that resists the force tending to cause the fluid to flow.

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