Science 4 Quarter 1

Nikki loves horses. Her parents decided she could finally get one if she proves to them that she has done all the research necessary to take care of one. She has done research on the internet and read many reference books about their daily care and maintenance. What else could Nikki read to get more information?

• magazine articles on the history of horses.

• magazine articles on different horse sports.

• magazine articles on the daily care of a horse.

• magazine articles on different breeds of horses.

Answer explanation

Reading magazine articles on different breeds of horses will provide Nikki with specific information about their care needs, temperaments, and characteristics, which is essential for responsible ownership.

John wants to prove that the paved area of the playground is hotter than the grassy area of the playground. He measures the temperature of each area at three different times of the school day and records the temperatures. He does this for five days in a row. Thomas wants to replicate John's experiment. Which statement describes a situation that could cause Thomas's data to vary from John's data?

• Thomas uses the same equipment that John used.

• Thomas records the temperature data on a chart.

• Thomas measures the temperatures only on the sunny days.

• Thomas measures the temperatures of the paved area and the grassy area.

Answer explanation

Thomas's data could vary because measuring only on sunny days may lead to consistently higher temperatures for the paved area, unlike John's varied conditions. This selective timing affects the comparison of temperatures.

Tags

NGSS.MS-PS3-4

Based on Taylor and Amad's data, how can you explain the differences in the amount of weight the pigs gained?

• Some piglets ate longer than others.

• The pigs preferred pure feed to blended feed.

• The more corn in the feed, the more weight the pigs gained.

• The more wheat in the feed, the more weight the pigs gained.

Answer explanation

The data indicates that the pigs gained more weight with higher corn content in their feed, suggesting that corn is a more effective ingredient for weight gain compared to other feed components.

Tags

NGSS.MS-LS1-5

Which feed ratio resulted in the highest pig weight gain after 2 months?

• 75% wheat & 25% corn

• 50% wheat & 50% corn

• 25% wheat & 75% corn

• 67% wheat & 33% corn

Answer explanation

The feed ratio of 25% wheat & 75% corn resulted in the highest pig weight gain after 2 months, likely due to the higher energy content and digestibility of corn compared to wheat.

Tags

NGSS.MS-ETS1-3

NGSS.MS-LS2-1

Mr. Lenard tested two types of fertilizer by using them on two identical gardens in his back yard. He divided each garden into four sections and gave each section a different amount of fertilizer. He recorded the growth in the table shown. Amount of Fertilizer (kg) | Fertilizer A Weekly Average Growth (cm) | Fertilizer B Weekly Average Growth (cm) 1 | 2.8 | 2.5 1.5 | 4.6 | 3.3 2 | 1.3 | 1.8 2.5 | 0.3 | 0.2 What is a trend shown in Mr. Lenard's data?

• A. Fertilizer B grew more than Fertilizer A no matter how much fertilizer was given.

• B. Fertilizer A grew better with more fertilizer, and Fertilizer B grew more with less.

• C. For both fertilizers, plants had the most growth with 1.5 kg, and the least with 2.5 kg.

• D. For both fertilizers, plant growth began to decrease when 1.5 kg of fertilizer was given.

Answer explanation

The data shows that both fertilizers had the highest growth at 1.5 kg and the lowest at 2.5 kg, confirming choice C. Growth decreased after 1.5 kg for both, indicating an optimal amount for growth.

Tags

NGSS.MS-LS1-5

For both fertilizers, which amount of fertilizer resulted in the most weekly average growth in plants?

• 1.5 kg

• 0.5 kg

• 2.0 kg

• 1.0 kg

Answer explanation

The 1.5 kg fertilizer amount resulted in the highest weekly average growth in plants, indicating it provided the optimal nutrient balance for growth compared to the other amounts tested.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

For both fertilizers, which amount of fertilizer resulted in the least weekly average growth in plants?

• 2.5 kg

• 5 kg

• 7.5 kg

• 10 kg

Answer explanation

The 2.5 kg fertilizer resulted in the least weekly average growth in plants, indicating that lower amounts may not provide sufficient nutrients for optimal growth compared to higher amounts.

Tags

NGSS.MS-ETS1-3

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Which fertilizer resulted in more weekly average growth at 1.5 kg?

• Fertilizer A

• Fertilizer B

Answer explanation

Fertilizer A resulted in more weekly average growth at 1.5 kg compared to Fertilizer B, indicating its effectiveness in promoting plant growth.

Tags

NGSS.MS-LS1-5

Bethany lives on a popular bicycle trail. She decides to keep track of the bicycles and joggers for two weeks. The graph above shows the results. Which table below matches the graph?

• A.

• B.

• C.

• D.

Answer explanation

The graph shows the counts of bicycles and joggers over two weeks. Table D accurately reflects these counts, matching the data points represented in the graph, making it the correct choice.

Which group had the highest number in Week 2?

• Bikers in Week 1

• Joggers in Week 1

• Bikers in Week 2

• Joggers in Week 2

Answer explanation

In Week 2, Joggers had the highest number compared to Bikers. This indicates that Joggers outperformed Bikers in that specific week, making them the correct choice.