Working with Graphs (1)

Name:_____________________________________Period:______Date:___________ Working with Graphs (1) 1. Answer the following questions based on the table below: Densities of Common Substances (at room temperature) Substance Helium (gas) Water (liquid) Gold (solid) Oxygen (gas) Lead (solid) Mercury (liquid) Density (g/cm³) 0.0001663 1.0000 19.32 0.001331 11.35 13.55 A. Which substance has the lowest density? B. Which two substances have a combined density of 20.32 g/cm³? C. Which substances are solid at room temperature? D. Which substance has a density closest to that of lead? Name:_____________________________________Period:______Date:___________ 2. Charles’ Law states that as the temperature of a gas increases, the volume also increases. ? Charles' Law ? A. What is the x-axis label, or independent variable? B. What is the y-axis label, or dependent variable? 3. The chart below shows that a classroom of 50 students has five different eye colors. Percentages of Students with Different Eye Colors 5% 10% 25% Blue Brown 28% Hazel Green 32% Gray Name:_____________________________________Period:______Date:___________ A. How many students have hazel eyes? B. What percentage of students has blue eyes or green eyes? C. What is the least frequent eye color? D. What two eye colors account for 57% of the students in the classroom? 4. Use the graph below to answer the following questions: World Population Population (in billions) 10 9 8.91 9.46 8 7 6.06 6 5 4 3 2.52 2 1 0.98 1.26 1.65 0 1800 1850 1900 1950 2000 2050 2100 Year A. What is happening to the population rate starting in the year 1950? B. Find the approximate slope of the graph between years 2000 and 2050. C. What is the estimated population for the year 2100? Name:_____________________________________Period:______Date:___________ 5. Answer the following questions based on the graph below. Quantity Demanded (per day) Bushels of Corn 30 25 20 15 10 5 0 $1 $2 $3 $4 $5 Price per Bushel A. What is the demand when the price is $1 per bushel? B. What is the independent variable? C. When the price increases from $2 to $5 per bushel, what happens to the demand? 6. Identify which graph is represented by the following stories. A. I left my house, stopped to get breakfast, and continued to go to the school. B. I left my house quickly, but when I realized I was early for school I slowed down. Name:_____________________________________Period:______Date:___________ 7. Circle the correct answer: Is the graph below (linear or non-linear)? Mass Radioactive Decay 70 60 50 40 30 20 10 0 Years 8. Circle the correct answer: Bar graphs are used to demonstrate (continuous, non-continuous) change. 9. Use the graph below to answer the following questions: Rainfall in Inches 12 10 8 2002 2003 6 4 2 0 Jan Feb March April May June July Aug Month A. How much more rain fell in March 2003 than March 2002? B. What month had the most rainfall? C. What months (in either year) recorded less than 2 inches of rain? Name:_____________________________________Period:______Date:___________ Answer Key: 1. A. helium B. water and gold C. gold and lead D. mercury 2. A. temperature B. volume 3. A. 14 B. 35% C. gray D. blue and brown 4. A. the rate of population growth is increasing B. 0.06 billion, or 60,000,000 C. 9.46 billion 5. A. 10 per day B. price per bushel C. the demand decreases 6. A. graph ii B. graph iii 7. non-linear 8. non-continuous 9. A. 3 inches B. April C. January and July