10. floating lines
buoy
lobster trap
How can lobster traps
harm a whale? Circle
the text in the diagram
that tells you.
How Does Entanglement Happen?
Sometimes, fishing ropes wrap loosely around the whales,
and they are able to free themselves. But often they can’t.
Lobster traps are connected to one another by lines or
ropes and are lowered into the ocean. The lines are attached to
an endline that leads to a buoy, or float, on the surface. When
whales swim into this area, they can easily become tangled
or trapped in the ropes. The ropes can get stuck in a whale’s
mouth or wrap around its flippers or tail. Look at the diagram
below. It shows how whales can swim into the lobster lines
and get tangled up.
Scientists found out that more and more whales were being
trapped in fishing gear, so they developed methods for freeing
the whales. One place where this work is done is the Center
for Coastal Studies in Provincetown, Massachusetts. In 1984,
workers there developed a plan for freeing the whales. Since
then, they have freed many whales. The team at the center
is the only one on the East Coast of the United States that is
approved to disentangle, or free, the whales from ropes.
7
8
9
A whale can
get entangled
in floating ropes
attached to
lobster traps.
162 Lesson 7 • Technical Texts
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27. Hold Onto Your Seat ... and Your Fork!
Low gravity is the reason why silverware will float off a
table and into space. Scientists have developed methods for
preventing this from happening. They have designed special
food trays that contain straps, magnets, and fabric fasteners.
The straps go around an astronaut’s lap and hold the tray in
place. Magnets hold forks, knives, spoons, and scissors, which
the astronauts use to open food packages. The fabric fasteners
hold food containers onto the tray.
Astronauts also learn to hold and eat foods carefully, so
they don’t fly off a plate into space. An astronaut will cut small
openings in food packages. Then he or she holds the package
close to his or her mouth so that the food doesn’t have to
travel far. Eating scrambled eggs in space requires careful
concentration!
Some types of foods crumble, such as bread and crackers.
The crumbs they form float away in low gravity. Astronauts
have discovered that tortillas work much better than bread.
They can spread peanut butter and jelly on a tortilla and make
a tasty PB and J. Or they can put rice, beans, and cheese in a
tortilla and roll it up to make a meal in a wrap.
10
11
12
In paragraph 10, you
learn that silverware
floats in space.What
have scientists done
to solve this problem?
Write the solution on
the Problem-and-
Solution Chart.
How do tortillas help
solve the problem
of crumbs in space?
Try Eating in Space 179
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35. Sequence Underline
the words that give
clues about the
sequence of events in
a curling end.
Critical Thinking
Think about what
skills you need to be
a curler.
How the Game Is Played
A curling match is made up of ten periods called ends.
Here’s how a match works. First, the lead player on a team
throws a stone down the ice toward the house. Next, two other
players slide down the ice ahead of the stone and use brooms
to sweep the ice. This action helps the stone move faster over
the ice. Players leave the stone where it stops.
Then, the lead player throws a second stone and repeats
the activity. When he or she finishes, the lead player on the
other team takes a turn and throws two stones. The player
whose stone is closest to the tee wins and gets a point. Since
each team throws eight stones, a team can score as many as
eight points in an end. Players continue taking turns until each
player on a team has the chance to throw two stones.
The players then begin to play the next end. This time they
throw stones toward the other house. The team with the most
points after ten ends wins the match. If there is a tie score, the
teams play another end to break the tie.
10
11
12
Players use the broom
to sweep the ice and
to help them keep
their balance. Some
players use the broom
to point out where a
teammate should aim
the stone.
Curling: The Roaring Game 187
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