water experiments at home
What kind of experiments could I do at home to identify at least three factors that affect the weather?
I cannot do a comparing heat capacities with water and soil, I cannot do an absorption of sunlight using ‘white’ and ‘black’ paper around a can with water in them, and I cannot do a concection current lab, where I use water at different temperatures and food colouring. I need three other ones…and i’m stuck!!! If anyone can point me the right direction or give me ideas would be great. Thanks.
Convection Current
Have you ever heard that hot air rises? That’s true! As air heats up, its molecules expand and spread out, making the air less dense than it was before. It floats up through the denser cooler air. As the warm air rises it starts to cool off and its molecules move closer together, causing it to sink again. This circulation is called convection, and the rising and falling of the air are called currents. Convection currents are part of what causes different kinds of weather. (You’ll find out how in the next experiment.)
We can’t see convection in the air; do you think water might act the same way? Do this experiment to find out!
You should have an adult help you with the hot water and the knife.
Materials
* Large glass jar or beaker
* Small cup or beaker (it needs to fit inside the jar)
* Food coloring
* Knife
* Plastic wrap
* Rubber band
* Water
Procedure:
1. Fill the small cup or beaker with very hot (almost boiling) water and add several drops of food coloring. Stretch the plastic wrap smoothly over the cup and seal it with the rubber band. (The plastic wrap will puff up–this is because the hot air above the water is expanding!)
2. Fill the jar almost full with cold water from the tap.
3. Use a pair of tongs to set the cup of hot water in the bottom of the jar.
4. Slice open the plastic wrap with the knife and watch what happens! (One long gash should do it.)
What happened? The hot water was less dense than the cold water surrounding it, so it rose to the top in a convection current. What happens as the colored water gets to the top? Does it stay there? Why or why not?
there are 2 more experiment in these website below
water experiments at home
Top Five Ways Water Damage Can Harm Your Home
When it comes to water damage homes may be more vulnerable you think simply because the area is typically so dry. Unlike other parts of the nation where home owners and city planners expect periodic flooding, water damage due to flooding remains a relatively rare for the area. That sense of complacency is what gets more home owners in trouble than anything else. Consider these facts:
1. Water damage is one of the most common insurance claims submitted by homeowners.
2. The average homeowner is more likely to experience a water damage related loss than nearly any other type of major claim including fire.
3. Residents of areas like Houston or other parts of Texas not prone to routine flooding often fail to carry flood insurance since they think it will never be needed, leaving them with large out of pocket expenses when water damage does occur.
Find out the top five ways water damage takes place in most homes and how to respond when the worst happens:
1. Broken pipe. From a burst water main to the simple aging of old pipes, many area homes experience water damage due to broken or leaking pipes.
2. Sewer back-up. This unsanitary water related damage is often a homeowner’s worst nightmare and requires rapid response to eliminate hazardous bacterial contamination.
3. Flash flooding. Although relatively rare, the dry area surrounding can lead to flash flooding that enters homes and causes massive problems in a matter of hours.
4. Accidents. Overflowing bathtubs or broken toilets can ruin hardwood floors and carpeting but so can accidental fires where water is used to extinguish the flames.
5. Long term humidity problems. Basements, indoor pools, aging infrastructure and other issues can lead to long term humidity problems that cause water damage over time. Homeowners may grow so familiar with the problem they don’t realize damage is being done to the home. Everything from mold and mildew to structural support can be impacted by long term humidity.
Whatever the reason behind the water damage, it is critical to have your home professionally cleaned and renovated. Mold and mildew can begin growing in as little as two days after water permeates the home and spores can be spread through the ventilation system of your home. Hard wood flooring, drywall, carpeting and furniture are also likely to be impacted either through direct water exposure or bacteria, mold and mildew spores. Search for a full service company like Kiwi Services that is able to provide 24/7 response and handle all water extraction and home cleaning needs.
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About the Author
Elizabeth, Marketing manager for Kiwiservices: http://www.kiwiservices.com/houston-water-damage-repair.htm
What are some really cool/interesting science experiments that I can do at home?
I’ve tried the egg in the bottle, using matches experiment, the water into a glass using matches, and some others; all of which were great!
Any other cool experiments would be fun to try, Thanks!
I would suggest the following experiments:
1) Growing mold on a slice of old bread.
All you need for this is a slice of old bread, a plastic bag that can be sealed and a small amount of water.
Put the bread and a few teaspoons of water into a plastic bag and seal it. Place the bag in a dry/warm area and leave it there for several days to a week. Every day, check the bag. For the first few days, you can add a teaspoon of water (but don’t oversaturate it) if the bread seems dry. After a couple of days, you should start seeing mold growing on the bread. It may take several forms and different colors. (Once you see the mold growing, do not keep adding water.)
2) Demonstration of capillary action
You will need a celery stalk (or carnation), a tall glass, water, and food coloring.
Take either a celery stalk or a carnation (white flower is preferred). Place the plant material into a tall glass with colored water. Place this in the fridge. Check it every day. Within a few days, you should start to see colored lines (from the colored water) in the celery stalk or carnation. If you let the experiment continue for a while, the top of the celery stalk or carnation flowers should show some color.
Magic – glass of water – Bloompax’s Home Experiments
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