Agriculture
Fast-flying fungal spores
Flush-Free Fertilizer
Getting the dirt on carbon
Amphibians
Tree Frogs
Salamanders
Salamanders and Newts
Animals
Odor-Chasing Penguins
A Microbe Nanny for Young Wasps
Vampire Bats on the Run
Behavior
Swine flu goes global
Math is a real brain bender
Storing Memories before Bedtime
Birds
Robins
Penguins
Geese
Chemistry and Materials
Earth-Friendly Fabrics
Moon Crash, Splash
These gems make their own way
Computers
Lighting goes digital
Games with a Purpose
Music of the Future
Dinosaurs and Fossils
Message in a dinosaur's teeth
Dino Babies
Digging Dinos
E Learning Jamaica
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Earth
The Rise of Yellowstone
A Volcano's Deadly Ash
Bugs with Gas
Environment
Power of the Wind
What is groundwater
Improving the Camel
Finding the Past
Ancient Art on the Rocks
Early Maya Writing
The Taming of the Cat
Fish
Bull Sharks
Codfish
Marlin
Food and Nutrition
Symbols from the Stone Age
Sponges' secret weapon
Healing Honey
GSAT English Rules
Capitalization Rules
Pronouns
Whoever vs. Whomever
GSAT Exam Preparation Jamaica
How are students placed after passing the GSAT exam
Mastering The GSAT Exam
The Annual GSAT Scholarships
GSAT Exams Jamaica Scholarships
42,000 students will sit for the GSAT Exam in two weeks
GSAT Exam Preparation
GSAT stars reap scholarship glory
GSAT Mathematics
Play for Science
Math is a real brain bender
Deep-space dancers
Human Body
Heavy Sleep
Smiles Turn Away Colds
A Fix for Injured Knees
Invertebrates
Daddy Long Legs
Flatworms
Scallops
Mammals
Moles
Coyotes
Kodiak Bear
Parents
What Not to Say to Emerging Readers
The Surprising Meaning and Benefits of Nursery Rhymes
Choosing a Preschool: What to Consider
Physics
Echoes of a Stretched Egg
Project Music
Spin, Splat, and Scramble
Plants
Underwater Jungles
Seeds of the Future
Cactus Goo for Clean Water
Reptiles
Copperhead Snakes
Asp
Crocodiles
Space and Astronomy
Burst Busters
Catching a Comet's Tail
Cousin Earth
Technology and Engineering
Young Scientists Take Flight
Machine Copy
Spinach Power for Solar Cells
The Parts of Speech
Problems with Prepositions
Pronouns
Countable and Uncountable Nouns
Transportation
Tinkering With the Basic Bike
Seen on the Science Fair Scene
Troubles with Hubble
Weather
The Best Defense Is a Good Snow Fence
A Dire Shortage of Water
Antarctica warms, which threatens penguins
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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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