Use the table below to predict what would happen if corn syrup, water, and corn oil were combined in a beaker.

The density of corn syrup is 1.33 g/mL and the density of vegetable oil is 0.91 g/mL. Which liquid(s) will float on water?

How are repeated trials different from replication?

Benny fills seven bottles with different amounts of water (H2O), as shown below. When he taps on the bottles with a spoon, each produces a different pitch. Bottle A, which holds the least amount of water, produces the lowest pitch. Bottle B has a slightly higher pitch, and bottle C has an even higher pitch. The pitch continues to get higher, all the way through bottle G, which holds the most water. Study the picture of the bottles and the description of the experiment above. Which of the following statements about the pitch made by these bottles when tapped with a spoon is TRUE?

An explanation of the things you observe based on logical reasoning and prior knowledge is called a(n):

Eliza planted 50 bean seeds, 50 marigold seeds, 50 tomato seeds, and 50 grass seeds in four different containers. She left each container in a warm, sunny spot. She added 100 milliliters of water (H2O) to each container each day. After 10 days, Eliza recorded the number of small plants in each container. Her data is recorded in the table below. Seed Experiment Data Seed Type | Number of Seeds Planted | Number of Plants After 10 Days Bean | 50 | 35 Marigold | 50 | 29 Tomato | 50 | 40 Grass | 50 | 37 Study the data chart and the description of Eliza’s experiment given above. Which of the following statements BEST compares the number of plants produced by different types of seeds?

Benny fills seven bottles with different amounts of water (H2O), as shown below. When he taps on the bottles with a spoon, each produces a different pitch. Bottle A, which holds the least amount of water, produces the lowest pitch. Bottle B has a slightly higher pitch, and bottle C has an even higher pitch. The pitch continues to get higher, all the way through bottle G, which holds the most water. Study the picture and the description of the experiment above. Which of the following statements BEST describes Benny’s observations?

Chris has designed a mini hot air balloon. In order for his hot air balloon to work, he must use a candle to heat up the air trapped under the balloon. When molecules are heated they move faster, take up more space, and their volume increases. How does this enable the hot air balloon to rise?

Your teacher gives you a table of substances and their physical properties. She gives you three unknown samples of substances. How could you determine what each substance is? (SC.S.P.8.4)

Cailynn wanted to know if adding fertilizer would create taller pepper plants that produced more peppers. She mixed up a solution of fertilizer and water using the amount recommended on the label. She planted the pepper plants in the same size pots with the same amount of potting soil. All of her pepper plants received the same amount of sunlight. The only difference between her two groups of pepper plants was that the one group had fertilizer in the water they were given. She measured the height of each plant every week for 3 months. She also counted the number of peppers each plant produced.

What is the test variable (independent variable) in Cailynn’s experiment? (SC.8.N.1.1)

Ashley hypothesizes that the speed of a ball rolling downhill is greater on steep hills than on hills that are not as steep. How can Ashley BEST test her hypothesis?

A scientist has an unknown solid substance and would like to identify it. She determines that the mass of the sample is 1230 g. She fills a graduated cylinder to 100 mL and then GENTLY slides the unknown sample into the water. The water level rises to 258 mL. Based on the information given above and the table below, what is the unknown substance?

Eliza planted 50 bean seeds, 50 marigold seeds, 50 tomato seeds, and 50 grass seeds in four different containers. She left each container in a warm, sunny spot. She added 100 milliliters of water (H₂O) to each container each day. After 10 days, Eliza recorded the number of small plants in each container. Her data is recorded in the table below. Seed Experiment Data Seed Type | Number of Seeds Planted | Number of Plants After 10 Days Bean | 50 | 35 Marigold | 50 | 29 Tomato | 50 | 40 Grass | 50 | 37 Study the data table and the description of the experiment above. What did Eliza do to make her findings valid?

Based on the chart below, which element has particles that are packed most closely together at this temperature?

Why is it useful for scientists to develop models for the structure of atoms?

Chandra hypothesized that the blue winged butterfly likes dark, moist places over sunny, dry environments. She performs an experiment to test her hypothesis where she repeats the experiment three times. None of the results support her hypothesis. What should she do?

Cailynn wanted to know if adding fertilizer would create taller pepper plants that produced more peppers. She mixed up a solution of fertilizer and water using the amount recommended on the label. She planted the pepper plants in the same size pots with the same amount of potting soil. All of her pepper plants received the same amount of sunlight. The only difference between her two groups of pepper plants was that the one group had fertilizer in the water they were given. She measured the height of each plant every week for 3 months. She also counted the number of peppers each plant produced. Study the description of the experiment above. Which group of plants serves as Cailynn's control group?

What is the dependent variable in this experiment?

Cailynn wanted to know if adding fertilizer would create taller pepper plants that produced more peppers. She mixed up a solution of fertilizer and water using the amount recommended on the label. She planted the pepper plants in the same size pots with the same amount of potting soil. All of her pepper plants received the same amount of sunlight. The only difference between her two groups of pepper plants was that the one group had fertilizer in the water they were given. She measured the height of each plant every week for 3 months. She also counted the number of peppers each plant produced. What is the outcome variable (dependent variable) in Cailynn’s experiment? (SC.8.N.1.1)