Nature of Science Review

Nature of Science Review

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Multiple Choice

1) Emily made the following observations.

EMILY’S OBSERVATIONS

Which of Emily’s observations is scientifically testable?

• 1

• 2

• 3

• 4

Multiple Choice

1) Delilah followed these steps of an investigation:

• Collect five objects made of different types of metal.

• Place them on a large laboratory table.

• Touch each metal object with a magnet and lift slowly.

• Record observations.

Which of the following statements is Delilah most likely testing?

• All types of metal are attracted to magnets.

• Each magnet can lift the metal object to the same height.

• Larger magnets can pick up heavier metal objects than smaller magnets can.

• Heavier metal objects are more attracted to magnets than lighter metal objects are.

Multiple Choice

1) Gabriel is designing an experiment to see whether sugar or artificial sweetener will attract the greatest number of ants. Which statement best describes why Gabriel should write down his experimental procedure?

• The exact experiment can be repeated by others and the results compared.

• The experiment can be changed by others to get different results.

• The data will help people decide what type of sweetener to use.

• The data will show people which ants are more common.

Multiple Choice

1) Mr. Bryant wants his class to observe and measure baby mice and record the data in their science journals. One student’s journal looks like this:

What conclusion can the student make based on the data collected?

• A. A mouse will never weigh more than 6g.

• Baby mice can vary in size, color, and activity level.

• A. Baby mice will never be less than 11 mm in length when they are born.

• A. Brown baby mice are bigger than white baby mice.

Multiple Choice

1) Rashan is performing an investigation using several earthworms. He places a rectangular box under a bright lamp and covers one-half of the box so that it is shaded. Then, he puts the earthworms into the box on the side that is still brightly lit. Later, Rashan notices that all of the earthworms have crawled over to the shaded side of the box.

Based on his investigation, which of the following is an observation and NOT a personal opinion?

• Earthworms are afraid of light.

• Earthworms like staying together.

• Earthworms move away from light.

• Earthworms like living in the ground.

Multiple Choice

1) Janna has offered her canary, Sammy, a choice of sunflower seed or ground corn for two months. She has observed that Sammy eats more sunflower seeds than ground corn during the two months. She concludes Sammy prefers sunflower seeds over ground corn. What should Janna do if she wants to confirm her results?

• Repeat the experiment with her friend's bird.

• Repeat the experiment using different food containers.

• Repeat the experiment with the same exact conditions.

• Repeat the experiment with another feed instead of corn.

Multiple Choice

1) Geoff is conducting an experiment to see whether goldfish eat more flakes or pellets. He thinks that the fish will choose the flakes. Every day, Geoff places both flakes and pellets in a fish tank and observes which food the fish choose. What evidence would be best for Geoff to collect as he observes the fish?

• The number of fish in the tank

• The time it takes for the fish to finish eating

• The number of fish that eat each type of food

• The time it takes for the fish to choose what type of food to eat

Multiple Choice

1) Dora believes that there are more frogs in the pond by her house when the water temperature is higher. She is making a chart to use as she gathers data to see whether she is correct.

What data should Dora record on her chart?

• Time, air temperature, water temperature

• Date, time, air temperature, number of frogs

• Date, time, water temperature, number of frogs

• Date, air temperature, wind speed, number of frogs

Multiple Choice

1) Beth is conducting an experiment to determine how often she should fertilize her bean plants so they will grow quickly. She is going to test four plants as shown in the table. Which variable is Beth testing?

• Brand of fertilizer used

• Amount of fertilizer used

• How often the plant is fertilized

• Time of day the plants are fertilized

Multiple Choice

1) Sarah made a hypothesis that flowers planted in the garden grow larger than those planted in pots. She planted sunflower seeds in a pot in a sunny area of her patio. She planted the same kind and number of seeds in her garden. Both sets of seeds sprouted. Sarah observed and measured the plants as they grew and bloomed. She​ analyzed her data. She concluded that the sunflower seeds planted in her garden grew much taller than the ones she planted in a pot. ​

What did Sarah do to reach her conclusion?

• She observed the plants.

• She observed, compared, and measured the plants.

• She planted seeds and watched them sprout. ​

• She planted sunflower seeds.

Multiple Choice

1) Shelby wants to know what type of bird comes to the feeder outside her window most often. She observes the bird feeder for an hour at the same time each day.

What else should she do to draw an accurate conclusion? ​

• Write down how long each bird stays at the feeder

• put up two more bird feeders

• count and record the number and type of birds she sees

• measure the amount of seeds the birds eat

Multiple Choice

Flora and her family liked to collect fossils. They went to a quarry where people are

allowed to look for fossils. At the end of the day, they gathered together all of the fossils

they had found. They sorted and compared their fossils. All the fossils had shells in them.

They concluded that the area around the quarry had once been under water.

What did Flora’s family do to help them reach this conclusion?

• They compared the fossils from the quarry with fossils they had found at other sites.

• They cleaned and polished the fossils.

• They dug holes in the ground.

• They collected, sorted, and compared all the fossils they found in the quarry.