Big Idea

Which plant received 1 hour of sunlight?

• Plant A

• Plant B

• Plant C

• Plant D

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

Which statement is always true about all scientific investigations?

• All scientific investigations begin with a question.

• All scientific investigations take place in a laboratory.

• All scientific investigations involve a controlled experiment.

• All scientific investigations use the same scientific method.

Which statement is necessary in order for a scientific investigation to be valid?

• The investigation must be able to be repeated by others.

• The investigation must produce data that can be graphed.

• The investigation must follow all the steps of the scientific method.

• The investigation must have a conclusion that matches the prediction.

Which statement is true about an inference?

• An inference is more useful than an observation.

• An inference is the same for everyone who makes an observation.

• An inference is an observation made using one of the senses.

• An inference is a logical conclusion based on observation.

Although scientific experiments and other kinds of investigations can be very different, they all start the same way. Which of these would you first do in any scientific investigation?

• draw a conclusion

• write a hypothesis

• form a question or problem

• organize data in tables and charts

Mr. Brown wonders how minerals affect animal growth and decides to conduct an experiment with his chickens. He begins with 3 buckets containing exactly the same amount of chicken feed and then adds the same amount of 2 different minerals to two of the buckets. He adds calcium to one bucket, adds magnesium to another bucket, and doesn’t add any minerals to the third bucket. What scientific term is used to describe the mineral placed in each bucket?

• Control

• Hypothesis

• Outcome Variable (dependent variable)

• Test Variable (independent variable)

Equal masses of paper towel were used to soak up water from a cup. Which question can be answered from the information in the table?

• Which paper towel is the best to buy?

• Which paper towel is most absorbent?

• Which paper towel is the most colorful?

• Which paper towel is safest for the environment?

Tags

NGSS.MS-ETS1-3

The table indicates the amount of time that four different brands of batteries worked in a flashlight. Which of the following statements is supported by this information?

• Brand L caused the light to shine farther than the other brands tested.

• Brand M lasted longer than the other brands tested.

• Brand N gave off a stronger light than the other brands tested.

• Brand O was more expensive than the other brands tested.

Alejandro wants to find out whether mealworms prefer apples or pears. He places an apple slice at one end of a cardboard box and a pear slice at the other end. He then places 20 mealworms in the center of the box, about 15 centimeters (cm) from each piece of fruit. After several hours, he counts the mealworms on or under the apple, the mealworms on or under the pear, and the mealworms not touching either the apple or the pear. Alejandro repeated his experiment four times. The data are recorded in the table shown. Which of the following is the best conclusion that Alejandro can make from this data?

• Mealworms prefer pears.

• Mealworms prefer apples.

• Mealworms do not prefer apples or pears.

• Mealworms do not go near apples or pears.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

READ THE RESPONSE AND ANSWER THE QUESTIONS.

• A

• B

• C

• D

Tags

NGSS.MS-LS1-5