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Why Mendeleev was able to observe periodicity?
mendeleev arranged elements according to atomic mass. He was able to observe periodicity when arranged in this pattern.
. To categorize the elements what reactions did Mendeleev observe?
These are of course chemical reactions, for example oxydation.
What must happen for you to be able to observe an objects chemical properties?
only when a change occurs and a new substance is formed
What is an Optical Telescope for?
It is used to observe features of stars, planets, and other celestial objects by their visible light (generated or reflected).
What restricts a light microscopes usefulness in studying viruses?
microbiology Its limitation for higher magnification to observe tiny objects of viruses.
When you observe objects in space why does it seem that the objects you observe are moving across the sky?
Because the earth is rotating.
How can you observe objects in space?
spacecrafts
What tools are used to observe objects?
Tools such as telescopes, microscopes, binoculars, and cameras are commonly used to observe objects. Telescopes are especially useful for observing distant objects in space, while microscopes are used to observe very small objects. Binoculars are helpful for observing objects at a closer range, and cameras can capture images for further study or analysis.
What properties would you observe when you use a metric ruler?
You would observe the length of objects.
How far away are the farthest objects we can observe?
The farthest objects we can observe are galaxies that are around 13.8 billion light-years away. This distance is governed by the age of the universe, as light from these objects has taken the entire history of the universe to reach us.
How do things observe?
Things observe objects by capturing light rays reflected by the objects. The information in the captured rays are processed by the brain or electronically to produce an image.
What objects is elements commonly found in?
all objects are made of some elements and its atoms.
What is a device that is used to observe distant objects?
A telescope.
Do periscopes allow you to see hidden objects?
No, periscopes allow you to observe objects while you are hidden.
Can a telescope see through clouds to observe celestial objects?
Yes, telescopes can see through thin clouds to observe celestial objects, but thick clouds can obstruct the view.
What objects did Isacc Newton observe to discover gravity?
An apple
What can you observe under a light microscope?
Under a light microscope, you can observe small objects such as cells, bacteria, and other microorganisms. The microscope uses light to magnify these objects, allowing you to see them in detail.
