BCDEFGHIJKLM
1
Use observations from the video and thumbnails to describe the material characteristics of the red crayons before melting. Use observations from the video and thumbnails to describe the material characteristics of the red crayons after melting. Use observations from the video and thumbnails to describe the material characteristics of the red crayons after cooling. CLAIM - Was the change caused by heating and cooling the crayons reversible or not reversible?EVIDENCE - Identify and describe the evidence to support your claim.REASONING - Use reasoning to logically connect the evidence to the claim.
1791
solid, 3 pieces, turned into a liquidturned back into a solid crayon, just a different shapeReversibleI believe that it is reversible because the crayon is wax and wax can remelt and become solid and keep going in that cycleIt is reversible because wax and melt and become solid over and over again.
1792
the crayons are broken into three partsthe crayons are now square and fat and not thin and longthey crayon looks darkerNot Reversibleif you melt the square crayons down it will not be the same color or shapethere is no molding cup
1793
solid, smooth, rough edges, red liquid, smooth, redsolid, pointed edges, redReversibleIf you were to heat the crayons after cooling it would take the liquid form again.Heating would take it back to a liquid state and cooling makes it solid.
1794
Solid, shiny, brightliquid, shiny, bright Solid, dull, darkNot ReversibleYou would need to add additional chemicals to make it as bright and shiny as it was before. Reheating it will cause the pigment to separate even more. The molecule structure has changed and restructured. I wonder if it could be tempered like chocolate to keep the bright color and shiny texture. Additional question, does it snap the way the crayon snapped before heating?
1795
The red crayon was in solid form. Then when heat was added, the crayon started to melt and turned into liquid.The melted crayon in liquid form was poured out of the dish it was melted in into a ice tray to cool down to get into a solid form.After cooling, the liquid melted crayon turned back into a solid form which then was able to use to color the paper.ReversibleI believe it is reversible because when you heat the crayon, it melts. When the crayon is cooled, it becomes a solid form again. It can be repeated over and over again if you keep heating the crayon and cooling it.It can be repeated over and over again if you keep heating the crayon and cooling it.
1796
sonic broken crayon in three piecesliquidsolid gem shapedReversiblebecause it began as solid broken pieces, was heated then melted into liquid like consistency, then after it was cooled into ice cube like tray it was solid and in the shape as the cubed/gem tray.This evidence shows the change is reversible because the crayons went from solid, to liquid when heated, and back to solid again when cooled. Since the crayons returned to a solid form, just in a new shape, it proves that heating and cooling did not permanently change the material.
1797
Solid red crayon broken into three piecesbright red liquid that you can pour into a mold multiple small dark red solid crayons formed in octagon shapes (looks like a gem) ReversibleThe crayon can be reheated and melted to be poured into a mold of a crayon and break into three pieces againIt's made of wax like materials that can be reheated and cooled over and over again, regardless of shape
1798
the crayons are solid; broken in to three pieces the turn in to a liquid; that is easily poured in to silicone moldsthe crayons are harden and used to mark up the paper; that serves the same purpose as its original purpose. Reversibleit can be remelted after shaped in to its original shape.because heat and melt and the air can reshape
1799
The crayon appears to be waxy and solide prior to being melted.After the crayon is melted, it is in the form of a liquid and appears to remain vibrant red.After cooling off, the crayon returned to it's waxy solid form.ReversibleAlthough the shape of the crayon changed based on the mold after it was melted, the crayon returned to a solid, waxy, and useable crayon.Originally, the crayon was molded into a solid pencil shape that could be utilized to color. When the crayon was melted, it turned into a liquid that was then cooled off in a mold. The mold was a different shape than the crayons original form which concluded to the different shape. Despite the shape, the crayon returns to its original shape, appearance, and performance.
1800
It's shiny and red solid.Now it's in liquid form.Now it's back to a solid form. ReversibleIt was a solid, and then it got melted into a liquid with heat, and then it became a solid again after cooling off again. It was a solid, then became a liquid, then went back to a solid so it reversed itself back from a liquid to a solid.
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889