Countdown to Science STAAR 4.1 and 4.2

A student designs an experiment to measure the stretch of a spring as different masses are attached to the bottom. The experimental setup is shown below. The student uses 10 g, 20 g, 30 g and 40 g weights.

What other piece of laboratory equipment is needed to complete this investigation?

• Graduated cylinder

• Hand lens

• Ruler

• Stopwatch

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5.6.D

Students in a science classroom have an insect terrarium like the one pictured below. All the organisms listed below would survive in the terrarium except —

• spiders

• beta fish

• small plants

• crickets

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3.9.A

The table below contains information about four different types of birds and descriptionsof their beak shapes. Different beak shapes allow them to eat different types of food.

Which bird species above is best adapted to eat from the flower shown below?

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5.10.A

Which metal listed below is attracted to a magnet?

• Iron

• Silver

• Lead

• Gold

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5.5.A

Which of the following is a learned behavior of a cat?

• Meowing

• Drinking water

• Purring when happy

• Using a litter box

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5.10.B

A teacher has two beakers filled with clear liquid at the front of the classroom. They look the same. She tells the class that one is filled with pure water and one is filled with a salt and water solution. It is their job to figure out which beaker contains salt before the end of class. What should the students do to answer this question?

• Boil both liquids until completely evaporated. The beaker with the solution will leave salt in the beaker.

• Pour both liquids through filter paper. The solution will leave salt in the filter paper.

• Observe both liquids with a hand lens. The beaker with the solution will look different when magnified.

• Record the temperature of each liquid with a thermometer. The water containing salt will have a higher temperature.

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5.5.C

Which type of natural phenomenon forms a U-shaped canyon?

• River

• Glacier

• Flood

• Earthquake

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5.7.B

Students were asked to research and list characteristics of the different types of soil. Which student’s paper correctly matches the name of the soil with its characteristics?

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4.7A