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Grade 6 Science Honest Mission – "Highway Salt – Is it the Quickest Technique to Soften Icy Roads?"

The aim of this science truthful undertaking is to discover the impact of highway salt positioned on snowy and icy roads. The freezing level for water is 32 levels Fahrenheit. At this temperature water freezes into ice. Highway salt is positioned on snowy and icy roads as a result of the salt causes the ice and snow to soften. The chemistry behind this response is that salt lowers the melting level or freezing level of water. The salt acts as overseas particles within the water to assist the melting course of.

On this science truthful undertaking you’ll simulate sidewalks and roads in icy situations. You’ll fill dishes with ice to characterize the sidewalks and roads. You’ll place varied supplies throughout the ice cubes to see if and the way the ice cubes soften. The assorted supplies embody: highway salt, fertilizer, calcium chloride, cat litter, and sand.

Speculation:

Highway salt and the varied different supplies will trigger the ice to soften

quicker than utilizing nothing in any respect.

Variables:

Kind of fabric unfold on ice

Supplies Wanted:

  • Six dishes which have dimensions of 9 x 13 inches
  • Freezer out there to make use of throughout the science truthful undertaking
  • Stopwatch
  • Water
  • 12 ounces of highway salt
  • 12 ounces of fertilizer
  • 12 ounces of calcium chloride
  • 12 ounces of cat litter
  • 12 ounces of sand
  • Paper
  • Pencil
  • Digicam

SCIENCE FAIR PROJECT SETUP INSTRUCTIONS:

Full the next steps for this science truthful undertaking:

Setup Step #1:

Pour water into every of the six dishes. Make it possible for the water degree in every dish is 1 inch.

Setup Step #2:

Place the six dishes within the freezer. Go away the dishes within the freezer till the water has frozen to ice. You could have to go away the dishes within the freezer in a single day.

Setup Step #3:

Place every of the six dishes on the ground of your kitchen.

You at the moment are prepared to start the science experiment.

SCIENCE FAIR PROJECT INSTRUCTIONS:

Step #1:

You’ll unfold materials onto every dish within the following

method:

Dish #1: Don’t unfold any materials throughout this dish. Go away this

dish as plain ice solely.

Dish #2: Unfold the 12 ounces of highway salt evenly throughout this dish.

Dish #3: Unfold the 12 ounces of fertilizer evenly throughout this dish.

Dish #4: Unfold the 12 ounces of calcium chloride evenly throughout

this dish.

Dish #5: Unfold the 12 ounces of cat litter evenly throughout this dish.

Dish #6: Unfold the 12 ounces of sand evenly throughout this dish.

Step #2:

Use your stopwatch to find out how lengthy it takes for every

materials to soften the ice. File your observations. Did the highway salt soften the ice the quickest? Rank the supplies so as from the dish that melted the quickest to the slowest. Do you suppose that highway salt is best materials to make use of on icy roads? Why or why not?

Step #3:

Chances are you’ll wish to take footage throughout the melting course of.

Footage will aid you doc your observations in addition to validate your outcomes and conclusions.

Abstract of Outcomes:

The supplies that have been unfold throughout every dish trigger the freezing level to decrease. This in impact brought about the ice to soften. Highway salt is

used on icy roads as a result of it’s the best and likewise the most secure for the setting.

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