Agriculture
Cleaning Up Fish Farms
New Gene Fights Potato Blight
Watching out for vultures
Amphibians
Tree Frogs
Toads
Bullfrogs
Animals
Sleepless at Sea
Bee Disease
A Whale's Amazing Tooth
Behavior
Pain Expectations
Reading Body Language
Pipefish power from mom
Birds
Ducks
Backyard Birds
A Meal Plan for Birds
Chemistry and Materials
The Incredible Shrunken Kids
Spinning Clay into Cotton
Cooking Up Superhard Diamonds
Computers
Seen on the Science Fair Scene
Nonstop Robot
Electronic Paper Turns a Page
Dinosaurs and Fossils
Dinosaur Dig
Dino Bite Leaves a Tooth
Dino Flesh from Fossil Bone
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
Earth
A Volcano's Deadly Ash
Easy Ways to Conserve Water
Petrified Lightning
Environment
Plastic Meals for Seals
To Catch a Dragonfly
Little Bits of Trouble
Finding the Past
Unearthing Ancient Astronomy
Stone Tablet May Solve Maya Mystery
A Long Trek to Asia
Fish
Sturgeons
Electric Ray
Codfish
Food and Nutrition
Making good, brown fat
In Search of the Perfect French Fry
The Color of Health
GSAT English Rules
Adjectives and Adverbs
Pronouns
Problems with Prepositions
GSAT Exam Preparation Jamaica
Ministry of Education Announces 82 GSAT Scholarships for 2010
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10 Common Mistakes When Preparing for the GSAT Math Test
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2014 GSAT Results for Jamaican Kids
GSAT Mathematics
Secrets of an Ancient Computer
A Sweet Advance in Candy Packing
Math is a real brain bender
Human Body
Surviving Olympic Heat
Smiles Turn Away Colds
Running with Sneaker Science
Invertebrates
Oysters
Lobsters
Centipedes
Mammals
Goats
African Ostrich
Manxes
Parents
Raise a Lifelong Reader by Reading Aloud
Choosing a Preschool: What to Consider
How children learn
Physics
Thinner Air, Less Splatter
Spin, Splat, and Scramble
Gaining a Swift Lift
Plants
Getting the dirt on carbon
Sweet, Sticky Science
Cactus Goo for Clean Water
Reptiles
Snapping Turtles
Asp
Iguanas
Space and Astronomy
Super Star Cluster in the Neighborhood
An Icy Blob of Fluff
A Planet from the Early Universe
Technology and Engineering
Reach for the Sky
Bionic Bacteria
Supersuits for Superheroes
The Parts of Speech
Pronouns
Countable and Uncountable Nouns
Problems with Prepositions
Transportation
Robots on a Rocky Road
Tinkering With the Basic Bike
Morphing a Wing to Save Fuel
Weather
Watering the Air
Warmest Year on Record
Either Martians or Mars has gas
Add your Article

Who vs. That vs. Which

Rule 1

Who refers to people. That and which refer to groups or things.

Examples:
Anya is the one who rescued the bird.
Lokua is on the team that won first place. 
She belongs to an organization that specializes in saving endangered species.

Rule 2

That introduces essential clauses while which introduces nonessential clauses.

Examples:
I do not trust products that claim "all natural ingredients" because this phrase can mean almost anything.
We would not know which products were being discussed without the that clause.
The product claiming "all natural ingredients," which appeared in the Sunday newspaper, is on sale.
The product is already identified. Therefore, which begins a nonessential clause.

NOTE: Essential clauses do not have commas surrounding them while nonessential clauses are surrounded by commas.

Rule 3

If this, that, these, or those has already introduced an essential clause, you may use which to introduce the next clause, whether it is essential or nonessential.

Examples:
That is a decision which you must live with for the rest of your life.
Those ideas, which we've discussed thoroughly enough, do not need to be addressed again.

NOTE: Often, you can streamline your sentence by leaving out which.

Example:
That is a decision which you must live with for the rest of your life.

Better:
That is a decision you must live with for the rest of your life.

 

Who vs. That vs. Which









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