Foam
/foʊm/
nounverbA2
Definition
Foam is many tiny bubbles that stick together on top of a liquid, like soap bubbles in water or sea foam on the beach. When used as a verb, it means to make these bubbles appear or to cover something with bubbles.
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See It in Action
A mass of small bubbles on a liquid surface
- •The foam on top of the coffee made it look creamy.
- •Sea foam covered the rocks after the big waves.
- •Soap foam helps clean dirt from your hands.
To produce or be covered with bubbles (verb)
- •The milk foamed when she poured it quickly.
- •The bathtub foamed with bubbles after adding soap.
- •The waves foamed as they hit the shore.
Make It Stick
- ✓Think of "foam" like "bubbles," but many bubbles joined together in a soft, light group on a liquid’s surface.
- ✓Picture the white, soft bubbles you see on the top of a glass of soda or in a bathtub full of soapy water.
- ✓It feels light and soft, like a cloud made of tiny bubbles you can touch but that pop easily.
- ✓Sounds like "foam" → imagine a "foam" party where bubbles cover everything and people play in them.
- ✓Remember the sea foam on the beach after waves crash—it looks like white frothy clouds on the water.
- ✓NOT like "water" (clear liquid), foam is a collection of air and liquid mixed into bubbles.
- ✓NOT like "liquid" alone, foam is a mix of air inside the liquid, making it light and soft.
- ✓As a verb, NOT like "pour" (moving liquid), foam means to create bubbles or cover with bubbles.
Try Other Words
- •Froth: light bubbles on liquid surface (Use when bubbles are light and moving, often used with drinks like beer or coffee)
- •Lather: foam made by soap (Use when foam is made specifically by soap or shampoo)
- •Bubbles: single or small groups of air pockets in liquid (Use when focusing on individual bubbles rather than a mass)
Unboxing
- •Word parts: "foam" (whole root word, no prefix or suffix)
- •Etymology: Old English "fām," meaning a mass of bubbles or froth
- •Historical development: Used since Old English times to describe bubbly liquid surfaces, especially in water and drinks
- •Modern usage: Commonly used for bubbles in drinks, soaps, sea water, and as a verb meaning to make bubbles or cover with bubbles
Reflect & Connect
•How does foam help us understand the mixture of air and liquid in everyday life?
•Can you think of times when foam is helpful or when it might be a problem?
Fill in the blanks
1.The coffee had a thick layer of foam ___ on top that made it look creamy.
2.When you shake a soda can, it will foam ___ because of the gas inside.
3.Soap foam helps ___ dirt and oil from your skin.
4.Unlike clear water, foam is made of many ___ stuck together.
5.The waves foamed ___ as they crashed onto the beach.
6.When washing dishes, the soap foams ___ to clean better.
7.If the milk doesn’t foam ___, the coffee might not taste the same.