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A plant is placed in a sealed greenhouse with a fixed supply of water soil and air After a year the plant weighs 5 kg more than at the start of the experiment and what weighs almost 5 kg less?
Wiki User
∙ 13y ago
The air in the room weighs almost 5 kg less.
Wiki User
∙ 13y ago
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What did Lazzaro Spallanzani contributes to microbiology?
He repeated John Needham's experiment in which nutrient fluids (Chicken broth) was put into a sealed flask then heated. The nutrient medium could be stored and microoganisms did not arise from it. This experiment disproved the Spontaneous Generation and paved the way for Pasteur's research. Spallanzani was largely criticised under claims that microorganisms needed oxygen to survive. He was also a pioneer in the fertilization an experiment which he produced with frogs. :) hope that helps.
Do maggots eat a body when in a casket?
if the casket is sealed where they cant get in then no but they can if the casket is not sealed good
Who heated broth in sealed flasks?
John Need-ham heated broth in sealed flasks in 1745
If the calcium salts of bone are removed will the bone be highly flexible?
YES! You can actually do this experiment with a chicken bone. Put it in a jar of vinegar for a few days (sealed). Take it out and bend it! Cool, huh?
A student made a model of an ecosystem inside a sealed plastic bottle. She placed soil rocks water plants and animals inside the bottle. How is the model different from a natural ecosystem?
Answer this question… The model lacks diversity.
How was Noah's covenant sealed?
God placed a rainbow in the sky
How are products packed?
In boxes, rolled in paper, sealed in cellophane or placed in bags.
How are bakery products packed?
In boxes, rolled in paper, sealed in cellophane or placed in bags.
What is a capillary melting point?
The sample is placed in a sealed capillary and heated up to the melting.
Is an anemometer is a glass tube sealed at one end and placed in a container of mercury?
It is true
Who in the 1800's performed an experiment using broth in a sealed and unsealed flask to prove spontaneous generation wrong?
Pasteur
If a tin is filled with hot water and sealed then covered with cold water What causes the tin to become dented?
The outside air pressure dents the tin. The water or air inside a sealed metal container will contract when cooled from the outside (by conduction through the can). When it was sealed, the pressure on the inside was the same as on the outside. But the contraction reduces the pressure on the inside, causing the external air pressure to squeeze the can, and possibly cave it in. This is widely demonstrated in another experiment using dry ice. A sealed gasoline can of about a gallon (4 liters) is placed on a dry-ice bed and cooled until the outside air pressure crushes the can.
What will happen to water in a cup if the cup is placed inside a sealed bag and left in a warm area?
The water is evaporated.
What do you think would happen if a group of plant was placed in a sealed environment with air water and light but no animal?
it would die ! @
Is tile an insulator?
Tile is an insulator. If the tile is placed correctly over an existing wood floor and is sealed with grout, it will insulate the room it is in.
What is the worth of a almost empty sealed can of coke?
Nothing, there's no beverage in it. No one really wants an empty can.
How do you store cooked mac and cheese?
In a sealed container in the refrigerator. It will probably last about 10 days before it gets moldy and becomes a "science experiment".
