Spider Webs & Glass 900L 301W

Birds in flight can sometimes fly into clear glass windows. It can be hard for birds to see that the clear window is solid. As a result, birds will not know to avoid the window and will fly into it, dying or getting hurt at impact.

The central idea of this paragraph is "Windows Can Endanger Birds".

Which of the following are details in the paragraph that support this central idea.

SELECT ALL CORRECT ANSWERS.

• "birds will not know how to avoid the window."

• A clear window is solid.

• "It can be hard for birds to see that a clear window is solid."

• Windex can make your windows nearly invisible to birds.

A German company, Arnold Glas, believed that they could help address that problem. They believed they could create windows that would be visible to flying birds.

What does the Arnold Glas company believe they can achieve?

• moving to a new address to solve the problem

• making soft glass to catch birds gently

• making unbreakable glass, so birds won't be cut

• making a window that birds will see

The inspiration for this design came from a spider web. The certain kind of spider’s web reflects UV light. While humans cannot see this type of light, birds can. As a result, birds avoid flying into the web. This keeps the spider’s web protected and unharmed.

What would this new window do differently than current windows?

• reflect UV light

• reflect bird's images

• be invisible to humans

• be unbreakable

Arnold Glas tested how birds reacted to their new spiderweb-inspired window glass. They compared that to how birds reacted to normal window glass. During these studies, nets were placed in front of these two different types of glass. Birds were encouraged to fly towards the glass. Even when birds did fly towards the glass, the net would protect them from direct impact. Researchers found that in ⅔ of the cases, birds avoided flying into the new type of window glass.

What natural substance inspired the new idea for UV reflective windows?

• Birds Nests

• Oak Leaves

• Spider's Webs

• Feathers

Arnold Glas tested how birds reacted to their new spiderweb-inspired window glass. They compared that to how birds reacted to normal window glass. During these studies, nets were placed in front of these two different types of glass. Birds were encouraged to fly towards the glass. Even when birds did fly towards the glass, the net would protect them from direct impact. Researchers found that in ⅔ of the cases, birds avoided flying into the new type of window glass.

What was used to protect the birds in the experiment?

• Styrofoam

• nets

• Windex

• shaving cream

A famous lookout tower in England has recently replaced their windows with this new type of window. About 300 bird species fly past this tower when they are migrating, so the owners wanted to protect the birds from clear windows. Many tourists also visit this tower, so the new glass windows were ideal because the UV light is invisible to humans.

Why was this new glass used in the famous English lookout tower? MARK ALL CORRECT ANSWERS.

• Birds could see the new glass.

• About 300 bird species fly past it.

• People can't see this glass.

• Many tourists visit this tower.

1. According to the text, what can birds see that humans cannot?

• lookout towers built in England

• clear glass windows found in people's homes and buildings

• UV light that is reflected by a certain kind of spider web

• objects that are very bright and colorful

What problem does the text describe?

• Birds in some parts of the world are losing their habitats and don't have enough food.

• Birds sometimes migrate to areas that are filled with humans.

• Birds are destroying spider webs because they are unable to see the UV light they reflect.

• Birds in flight can sometimes fly into clear glass windows because they cannot see them.

What can be concluded about the Arnold Glas windows?

• They reflect UV light birds cannot see.

• They reflect UV light humans can see.

• They reflect UV light spiders cannot see.

• They reflect UV light birds can see.

Based on the information in the text, what can be concluded about the effectiveness of the Arnold Glas Companie's solution?

• It was never effective in stopping birds from flying into the windows.

• It was effective most of the time in stopping birds from flying into the windows.

• It was effective all of the time in stopping birds from flying into the windows.

• It was effective only a third of the time in stopping birds from flying into the windows.