Melting Crayons Assessment (Responses)

	B	C	D	E	F	G
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.

1646	Solid red cylinders	Red liquid pouring out	Solid gem shaped	Reversible	After the shape changed from solid to liquid, it was able to change back to solid.	The video shows the crayons were able to color properly after the cooled and solidified again
1647	solid	liquid	solid, new shape	Reversible	It melted when heat was applied and returned to solid after cooling. This process can be done more than once.	When the material reaches a certain temperature it changes state (hot - solid to liquid, cold - liquid to solid). This process can be reversed.
1648	The crayons are solid and glossy and more cylinder in shape.	The crayons are liquid and seems slightly thicker and took the shape of the container.	They have gone back to a solid state but in a different shape that was based on the container they cooled in.	Reversible	The crayons started off solid and then transformed to liquid. After cooling they went back to a solid state.	As the heat melted the wax the state of matter transformed from a solid to a liquid state. When heat was removed and the crayons cooled the transformation went back to a solid from a liquid state.
1649	red, hard, cylindrical, shiny	red, liquid, pourable, changeable	solid, edges, makes a mark on a surface, same color, shiny	Reversible	They had the same characteristics	The characteristics from the first set of crayons to the final set were both solid, held shape, and made the same kind of mark
1650	Solid. Brittle. Opaque and glossy. Red.	Fluid. Glossy. Red.	Same as before melting, but different shape.	Reversible	The characteristics of the material were the same before and after.	Changes were only temporary. The chemical properties of the material were not affected by heat. Only the state of the material. Therefore the changes caused by an increase in heat, were reversed by a decrease in heat.
1651	Red solid cylinder with pointed tip broken into three unequal parts.	uniform flowing red liquid	Identical shaped red solid material capable of scribing in red	Reversible	It started as a solid object that was able to write and finished as a solid object able to write	The material is able to be heated up to change state and placed in a mold where it is left to cool and then its hardens to a solid state. The process can be repeated.
1652	hard, red, cylindrical, smooth, rough on some edge where broken	liquid, has viscocity, red	solid, smooth, similar shapes and structure,	Reversible	it was solid to start and solid at the end and liquid in the middle	when the broken crayons are heated they turn from solid into liquid which can be poured. After cooling they become solid again and have the same properties of being smooth, hard, and being able to colour.
1653	The red crayons are a solid, but breakable.	They are liquid, but viscous, and they pour slowly. However, the liquid can take the shape of whatever container it is poured into.	After cooling back to room temperature, the crayons become a solid again and can be used to draw.	Reversible	They started a solid, became a liquid with heat, and reverted back to a solid when they cooled.	You could draw with them at the end.
1654	the crayons are red solids broken in small cylinder shaped pieces	Now the crayons have become a red liquid	they are now solids in a different shape that can color	Reversible	Since the crayon was melted and poured into a shape, you could melt them again and pour them into a cylinder shape to reverse the process	Wax can be melted, cooled, take a new shape and be melted and cooled again in a different shape.
1655	Solid, shiny, smooth, red cylindrical	Shape changed to liquid, color stayed the same, probably hot	solid, red, shiny, took the form of the tray	Reversible	The material took the shape of the tray therefore the material could be reformed into a cylinder shape.	because no other characteristics change it can go back to the same thing as before.
1656	solid, red, in the shape of a crayon, broken into 3 parts	brighter red, liquid, pourable, able to take the form of that which it is in/on	darker red, pyramid-like shapes	Reversible	Solid form when heated returns to a liquid form	if liquid state of wax is poured into a crayon mould, it would cool in the shape of a crayon
1657	The crayon is solid and red, mostly cylindrical however with breaks and the "nub". The 3 pieces are different in volume. It is shiny, reflecting the overhead light but a dull shiny.	The crayon is liquid. The color looks brighter. The reflection of light is more clear, almost glassy. It takes the shap of the container that it is in.	The crayon is now solid, matching the shape of the container that it cooled in. The color seems to be darker than in the original solid form. It still reflects light, but not as clear as when a liquid.	Not Reversible	The color of the crayon afterwards seems to be a different color.	The crayon was able to go from solid to liquid to solid, however the color of the crayon afterwards seems to be a different color, so I would consider this not reversible.
1658	Waxy, red, shiny, solid, cylindrical, can draw with it.	Melted crayons turn to liquid and can take on new shapes while still warm/melted.	When cooled the crayon becomes a solid again and takes on the shape of the mold, and then can be used for drawing again.	Reversible	It was solid, then melted to become liquid, then cooled to become solid again.	Crayons changed form with heating and cooling.
1659	Red solid shiny cylinders	Red shiny Liquid	Red solid octahedrons	Reversible	State change seems to be reversible	We saw the phase to change from (s)-(l)-(s)
1660	red, solid, hard, smooth, shiny	liquid, red, shiny, viscous	red, solid, smooth, hard, can draw with it, assumed the shape of the mold, flat faces	Reversible	before heating and after cooling, it had the same key properties (red, smooth, shiny, solid)	Even though the properties changed when the crayon was heating, it reversed back to the same properties after it cooled
1661	red, solid, hard, smooth, shiny, cylinder,	liquid, still red,	hard, red, different shape from before, can draw with them,	Reversible	It was solid, it changed to liquid after hearing, then when cooled it turned to solid again. This can be repeated many times.	It was solid at the beginning and the end.
1662	The material is in a solid, but malleable state.	Thick, liquid form.	Return to a solid state based on the shape of the mould. They can be used as a crayon to leave a red mark.	Reversible	The object changed from a solid to a liquid state when heat was applied and then returned to a solid state when the heat was removed.	The crayon did not change state until heat was applied.
1663	Red, solid, cylindrical, in 3 pieces, shiny, broken pieces	red, liquid, shiny, warm, viscous	Darker red, solid, unique 3D shape, shiny,	Reversible	It melted and then became solid	Is was reversible because it started as a solid then was melted by a heat source before being cooled and returning to its solid state.
1664	cylindrical body, some with point, solid, red, smooth, reflective,	more reflective, liquid, smooth, still red, pourable, viscous	darker red, new shape, solid, not as reflective, still some shine, able to make marks,	Reversible	the solid crayons became liquid when heated and then returned to solid form as they cooled. They still worked as crayons after this return to solid state	A reversible change is an effect that is temporary and does not prevent the material from returning to its original state/function
1665	The broken crayon is round, hard and breakable. You can see the breaks.	The crayon is now a liquid. It takes the shape of the container it is poured into. It leaves residue in the bowl once pouring it	It is a solid again, it is in a different shape and can make the same marks as before. It took on the shape of the container and kept it once cooled.	Reversible	It was a solid before, with the ability to make marks. After the heating the crayons and then cooling them, the shape is different but the state is back to solid and can make marks	A reversible change is something that you can 'undo' or return to its original state of matter (solid, liquid, gas). Since it started as a solid and then finished as a solid, that means the change is reversible.
1666	The red crayons are wax in solid form, on top of a cold surface.	After the red crayon was exposed to a hot surface and melted to become a wax in liquid form.	After cooling, the wax hardens into a solid form once again and takes the shape of the mold it was poured into.	Reversible	It can be used in the same way and go back to the way it was before.	If the wax material can be molded through the process of heating and cooling, it could be reversed into its original form.
1667	Melts from the bottom up, color darkens?	Shiny color, liquid	Darker color, still colors	Reversible	The liqid crayon could be cooled in a new form and still used as a coloring tool	The video shows the crayon melting, cooling back to a solid form, and can be used as a coloring tool
1668	solid, red crayons, broken cyclindrical shapes with some smooth, rounded sides and other sharp fragmented ends	crayons melt with hear into a liquid form- color remains the same, once cooled again in a mold they take shape again and form a solid	solid, then liquid, then solid, color remains the same	Reversible	color and solidness same before and after	*
1669	1. hard, red, and shiny 2. very shiny, red, and semi liquid 3. liquid and very shiny 4. semi liquid and less shiny 5. solid and less shiny 6. solid, firm, can transfer to a solid on another surface	with heat, the crayons changed their states of matter: solid, liquid, solid that went from less shiny to shiny and back to less shiny	After cooling, the crayons returned to a solid state that could be controlled to control the solid transfer to another surface.	Reversible	heat and cooling changed the state of this matter	Because heat and cooling was applied....
1670	Red, solid, cylindrical, hard smooth, broken, 3 thirds of a whole, One end is pointy, one end is flat, other ends are uneven/jagged	viscous, red, thick, shiny, brightly colored	Darker red, solid, angular, less shiny, different sides/surfaces, you can make red marks on paper with it.	Reversible	Solid when cold, liquid when hot, you can color before and after the process.	You could melt the new shapes and put them into a crayon-shaped mould to re-make the crayon. You can color with the substance regardless of the shape/form.
1671	solid, long shape, red	liquid, red color	solid , red color, producing lines and marks	Reversible	The pictures show the crayon being melted and hardened again	The progress of melting and cooling was evident from the video and pictures. The process was reversible since the product at the end was similar.
1672	Solid, malleable, red, does not take shape from the surroundings	liquid, still red, takes shape after the surroundings	solid, malleable, material can rub off on paper	Reversible	It is reversible, as the crayon went from a sold to a liquid and reversed back to solid	When heated the crayon changed state of matter from solid to liquid. As the liquid cooled of is solidified and we are able to write with it again.
1673	round, waxy, shiny, 3 pieces, jagged edges, solid	liquid, changing shape (no fixed shape), pourable	solid, gem shape,	Reversible	The crayon started as a solid, changed to a liquid when heated, and became a solid again when cooled.	It is reversible because it went from a solid to a solid again after being heated.
1674	The material characteristics are that the crayons are red, it seems to be one crayon that was broken into three parts.	The crayon pieces became a lquid, which is different than a solid.	Tje crayons are solid, but a different shape and can still have the same function of drawing.	Reversible	Because it went from solid to liquid and back to solid.	The reasoning is that reversible means you can go back forth from what you started with to what it became and then back to what you started with.
1675	The crayons are red. They are solid. They are relatively similar in size and shape (length and width). One of the pieces has a more pointed end.	the crayons are now liquid. they can be poured into a mold. the liquid is thick (viscous). It has maintained the same color as the original solid. It is opaque.	The crayons are once again solid, but they have now taken on the shape of the molds that the liquid was poured into. They have maintained the original color, they still function as crayons	Reversible	The crayon still has the same function and color as it did before melting.	The change caused by heating and cooling the crayon is reversible because the color is maintained, it is once again a solid, and it can still be used as a crayon in the same way. Reversible means that the change is not permanent. The crayon does not remain a liquid; it returns to a solid and functions the same; therefore, the change was reversible.
1676	Solid, red, broken, different length , made out of the same substance. All 3 pieces are from the same one larger piece.	liquid, smooth, red (no change in color), all pieces melted into one. Pourable liquid.	Solid, shiny, darker than the liquid form	Reversible	You could melt the crayons again and put them in a mould that would give the same shape as the original crayon.	Heat turns solid into liquid so we could.
1677	Non-uniform surface (smooth, groves, scratches, divots, chunks missing) with clear non-uniform breakage. Shaped like a cylinder with one end pointy. Floating in a liquid. Glossy surface. There is a clear bounary between the crayon and the liquid. The crayons float in the middle of the bowl and are touching each other.	After melting the material flows as it is poured and takes the shape of the tray. it also seems to stick slightly to the edges of the tray and the color is red, glossy still.	Red and glossy, however it looks a little darker in color. The shape is the same as the form it was in, it	Reversible	_ Color stayed the same in both states. - Material flowed as a liquid - Still acted as a crayon after reformed into a solid.	We went from a solid to a liquid by applying heat. When the heat source was removed, the material must have cooled down and went from a liquid to a solid. A liquid is something that flows and takes the shape of its container.
1678	- once it gets warmed up, it completely loses its form and becomes a liquid - colour stays the same - Crayons are shiny but liquid is shinier	- Liquid appears thin when it's being poured into the molds - Liquid appears shiny - Liquid takes the form of the mold	- less shiny, smooth - the shape matches th emold - colour that is drawn is lighter than the crayon itself	Reversible	- The surface of the mold after was similar to the crayon before it melted - It still drew - Red before, still red - It reformed into a solid	Reversible changes can be undone where the identity of the substance does not change. The colour remains unchanged as it stays red, and the function remains constant as well. The change in state of matter can be done so that it goes back to the same state of matter.
1679	Solid transforms to liquid	After melting the crayon was able to change shape	Melted and cooled crayon has the same way of use	Reversible	Melted	Solid
1680	solid, cylindrical shape, red, shiny	liquid, fluid shape, red, shiny	solid, square-ish shape determined by the mold; red and shiny, appear to be darker	Reversible	The process of heating caused shape fluidity but cooling led to the taking of a definite shape.	Reversible means to capable of returning to the original state; the fixed shape crayons became fluid by heating and lost their shape, but cooling them in a mold led to a definite shape again (even though a different shape)
1681	Wax, solid, cold,crayon-shaped,shine	Liquid, hot, wax reformed	slight change in shade of red, solid, change in shape, dull	Reversible	Began as a solid and returned to solid form after heating and cooling	evidence of the heat melting a solid into liquid form and then into a solid showing that forms of certain materials can be reversible.
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744