Agriculture
Middle school science adventures
Protecting Cows—and People—from a Deadly Disease
Where Have All the Bees Gone?
Amphibians
Salamanders and Newts
Salamanders
Frogs and Toads
Animals
Eyes on the Depths
Ultrasonic Frogs Raise the Pitch
Roboroach and Company
Behavior
Fear Matters
Hitting the redo button on evolution
Making light of sleep
Birds
Songbirds
Robins
Albatrosses
Chemistry and Materials
Supergoo to the rescue
These gems make their own way
Sweeeet! The Skinny on Sugar Substitutes
Computers
Lighting goes digital
The hungry blob at the edge of the universe
A Light Delay
Dinosaurs and Fossils
Dino Flesh from Fossil Bone
Early Birds Ready to Rumble
Dinosaur Dig
E Learning Jamaica
Results of GSAT are in schools this week
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Earth
In Antarctica watch the heat (and your step)
Hot Summers, Wild Fires
Earth from the inside out
Environment
Where rivers run uphill
A Change in Time
Shrinking Fish
Finding the Past
The Taming of the Cat
Your inner Neandertal
Big Woman of the Distant Past
Fish
Barracudas
Sharks
Mahi-Mahi
Food and Nutrition
Allergies: From Bee Stings to Peanuts
Symbols from the Stone Age
Recipe for Health
GSAT English Rules
Order of Adjectives
Pronouns
Whoever vs. Whomever
GSAT Exam Preparation Jamaica
10 Common Mistakes When Preparing for the GSAT Math Test
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
GSAT Exams Jamaica Scholarships
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
GSAT Exam Preparation
GSAT Mathematics
A Sweet Advance in Candy Packing
Setting a Prime Number Record
Math is a real brain bender
Human Body
Music in the Brain
Hear, Hear
The tell-tale bacteria
Invertebrates
Giant Squid
Camel Spiders
Ticks
Mammals
Siberian Husky
Donkeys
Gerbils
Parents
What Not to Say to Emerging Readers
Raise a Lifelong Reader by Reading Aloud
The Surprising Meaning and Benefits of Nursery Rhymes
Physics
Echoes of a Stretched Egg
Gaining a Swift Lift
Strange Universe: The Stuff of Darkness
Plants
Seeds of the Future
White fuzzy mold not as friendly as it looks
Sweet, Sticky Science
Reptiles
Komodo Dragons
Alligators
Iguanas
Space and Astronomy
Saturn's Spongy Moon
Saturn's New Moons
Slip-sliding away
Technology and Engineering
Crime Lab
A Clean Getaway
Weaving with Light
The Parts of Speech
Problems with Prepositions
What is a Preposition?
Countable and Uncountable Nouns
Transportation
Charged cars that would charge
Ready, unplug, drive
Middle school science adventures
Weather
Arctic Melt
In Antarctica watch the heat (and your step)
A Dire Shortage of Water
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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