Separating mixtures and solutions: Evaporation Mixtures and Solutions.

Slides:

Advertisements

Similar presentations

How Can The Oceans Be Described?

Advertisements

Earth’s surface is covered mainly by water.

Structure of water Oxygen and hydrogen of water is covalently bonded to create a stable molecule. Water is polar because the oxygen region is slightly.

Separation Techniques LSS 1 Term 3. Mixtures and Pure Substances Recap: How do we define mixture? A mixture contains two or more constituent substances.

Dissolving and separating solutions

What are some Properties of Solutions? What are the way dissolving may be increased Distinguish between saturated and unsaturated How do solutes have.

Grade 7 Science Pure Substances and Mixtures Ms. Willis

Separation of Mixtures

Salt and Water By: Steph. What Type Of Mixture is Saltwater? Saltwater is a Homogeneous Mixture because only one of the two types of particles are visible.

Mixtures And Solutions

WATER 1º THE MOLECULE 2º PHYSICAL PROPERTIES 3º STATES OF WATER

Unit 1: Measurement & Matter

Properties of Ocean Water Chapter Ocean Water 1. Ocean water has both chemical and physical properties. a. Chemical properties are those characteristics.

The Water Cycle It’s role in weather. What is a cycle? A series of events that happens over and over. A series of events that happens over and over.

Chapter 19: Separating Mixtures

Changing State Mixing Materials Water Cycle Heating and Cooling Separating Solids Burning Materials Evaporation.

Oceans. Earth’s Oceans 71% Earth’s Surface is water Mostly Ocean Divided by continents into 5 Oceans Pacific (Largest), Atlantic (2 nd ), Indian, Arctic,

By: Drew Harris. Introduction ocean water About ¾ of the Earth is covered with water. Most of that water is ocean water. Ocean water is a mixture of water.

Section 1 - What Is a Solution? Mixtures You have learned about the difference between pure substances and mixtures. Mixtures can either be heterogeneous.

© OUP: To be used solely in purchaser’s school or college A pure substance contains just one type of particle. A mixture contains at least two different.

The Water Cycle p. D34-D37.

Notes: The Water Cycle and Unique Properties of Water

The Water Planet Chapter 2 Section 1. Water Water covers 70% of the earth’s surface Examples: Streams, Rivers, Lakes, Seas, Oceans, Water Vapor, Glaciers,

Separating mixtures: rock salt LO: to separate mixtures that dissolve and don’t dissolve in water What happens to sugar cube when you drop it into your.

Salt Water. Properties of Salt Water  Salinity is the amount of dissolved salts in water  The salinity of the oceans averages 35 ppt (parts per thousand)

Properties of Ocean Water Can you see what the sea’s about?

O CEANS : THIS PLANET ’ S LAST FRONTIER. QW- W HAT ARE WAVES ?

Ocean Water Chemistry and Currents. Ocean Water Chemistry Salinity: the amount of salt dissolved in ocean water –1kg of ocean water contains 35g of salt.

Water and Separating Techniques. Mixtures A mixture of substances can be easily separated The substances are not chemically combined You could separate.

Mixtures and Solutions

SCIENCE L1 WHERE IS EARTH’S WATER? Earth – The water planet People use water to travel ¾ of surface is covered by water It provides a home &

Investigation 1 Part 3 Observing Crystals. Collect your group’s dish from the evaporation tray Collect your group’s bin.

How Minerals Form. Crystallization Geode is a rounded, hollow rock that is often lined with mineral crystals. Crystals form inside a geode when water.

More on Separation glass tubing rubber stopper Salt water hot plate.

Separating mixtures and solutions: Evaporation Mixtures and Solutions.

 Students will identify changes that can occur in the physical properties of the ingredients of solutions such as dissolving salt in water or adding.

Salt Water Oceans 11.

Separation Processes. Separation processes are used to separate mixtures. Filtration, evaporation, decantation and sedimentation are all separation processes.

AIM: How does distillation work?

A presentation by Science Doodles

The Water Cycle.

Separating a Soluble and Insoluble Substance

Chemistry Solutions.

Composition & Characteristics of Oceans

Match the correct description to the separation technique.

Distillation First the mixture is heated up.

Mixtures and solutions A mixture is two or more substances that are mixed together but not chemically joined. A solution is a special type of mixture.

Separating Mixtures Lesson 5: Extracting Salt

A Funny Taste Directions: Fill in the left side of the following chart with your predictions on which body of water has the lowest salinity (1) to the.

Separation of Mixtures

Warm-Up March 02, 2016 List the similar physical features for Earth and Mars. Compare Earth to the other planets in are solar system.

Separating Substances

Separation of Mixtures

Mixtures and Separating Mixtures

Starter How could you get pure water from this?.

Chapter 8 sec 1 Ocean Waters’

Easiest way to remember where all water ends up…..

Oceanic Absorption In this activity, you will conduct an experiment to learn about the method of oceanic absorption for carbon sequestration.

What happens to the mass when a solution is formed?

Separating mixtures MARTIN 2011.

What do our copper sulfate crystals look like?

The Water Cycle.

Separating mixtures.

Dissolving and separating solutions

Presentation transcript:

Separating mixtures and solutions: Evaporation Mixtures and Solutions

All water, even rainwater, contains dissolved chemicals called salts. Not all water tastes salty, however.

The world’s rivers carry about 4 billion tonnes of dissolved salts to the oceans every year. Salts become concentrated in the oceans because the heat of the Sun causes evaporation of water from the surface, leaving the salts behind.

Percentage of salt in some bodies of water Arabian Sea 3.7% Atlantic and Pacific Oceans 3.2–3.7% Baltic Sea 1% Dead Sea 27% Great Salt Lake 5–27% Red Sea 4.1%

Evaporation can be used to separate solutions. The solvent evaporates and the solute is left behind.

Experiment Put five drops of salt water in a metal spoon. Place the spoon over a candle and evaporate the water and observe what happens.

Hi my name’s Walter! Hi my name’s Salty!

Salty, don’t talk to those Water particles! Yeah, they think they are so cool ~ covering 70% of the Earth wooo.

Yeah, yours is a measly 100 degrees Celsius, ha wimpy! Hey water particles, did you know that our boiling point is 1400 degrees!

I think the humans are heating us! Do you feel it getting warmer in here?

100 degrees Celsius … Hey water particles! Where do you think you are going!? HaHa! We are evaporating out of this place!! Have fun in the spoon!!

The End Think there’s a chance it will reach 1400 degrees?

However, recovering the solvent from the solution is more complicated...

Tomorrow - Distillation: separating the parts of a solution glass tubing flask rubber stopper blue liquid hot plate plastic tubing beaker Water Quiz