Question

please help!!!!

Materials needed

2 glass jars or beakers that will hold at least 1/2 cup of water
- 2 sugar cubes
-ice water straight from the refridgerator
- hot water from the tap
- a kitchen measuring cup
- a stopwatch

procedure:
1.using the measuring cup to measure 1/2 cup of ice water. pour the water into one of the glass jars.
2. plave one sugar cube in the jar of water.
3.begin stirring the water with the sugar cube without stabbing the sugar cube.
4.record the time it takes for the sugar cube to completley disolve.
5. Now repeat steps 1 through 4 but this time use ho

Answer 1

the hot water( wait until you are ready to do this step to take the hot water from the tap so that it will be hot as possible when you begin this step.

all i need is someone to tell me the

hypothesis
observation/data
discussion of resault
please medals deff rewarded I really need your help!

Answer 2

really -.-. that is an experiment, do it in your home its not difficult and takes you 5 min

Answer 3

i dont have sugar cubes:(

Answer 4

use regular sugar and add some time and invent some data :D

Answer 5

i have no sugar either lol just looked

Answer 6

katlin95






0is this a good observation:)

using the hot and cold water I found that hot water disolves more sugar than cold water, because hot water expands, so their is more space between the molecules in hot water than cold?

Answer 7

nope

Answer 8

Using hot water i found that the sugar dissolves more rapidly and in more quantities.

the part were you put why its a little more ocmplicated if you want i can exaplin i to you

Answer 9

so if i just used what you said at the top it would be okay ?:) and could you possibly give me a probable reason for you observation?

Answer 10

depends in what grade are you in, but ill explain it anyways

When substances have a high temperature, they have more energy (enthalpy). The more energy molecules have, the faster they move. The molecules in hot water move faster than cold water because of the higher energy. Because the molecules of hot water move faster, they can more easily break apart other molecules of a different substance when they come into contact.
The fast moving water molecules can break apart the bonds between the sugar crystals so they become dissolved into the water.

Answer 11

wow thankyou so much!

Answer 12

;D my pleasure