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The boundaries of the former Soviet Union changed

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Suzanne watches a survival skills program on television. She makes a sketch based on what she sees.Which label best describes
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Which method is best for separating most of a solid from a gas quickly?distillation filtration screening evaporation
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Hector uses the apparatus below to separate a mixture.How do the substances compare? Substance 1 has a lower density than
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Carlotta adds too much salt to her soup. She recalls that evaporation can be used to separate salt from salt water, so she plans
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Which method of separating a mixture involves passing a heterogeneous mixture through several layers of different materials?filt
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During which method of separation is one of the components of the mixture lost?distillation magnetic separation screening
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While doing a distillation, Farha heats the mixture too fast, and the temperature rises too quickly. If the mixture is composed
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In which situation will screening be used to separate a mixture?if the mixture is a solid suspended in a gas if the components
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Which mixture can be separated based on differences in the particle size of the components?sweetened tea cereal and milk
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In a village in Africa, the same plot of land is planted year after year, and no fertilizers are used. What problem is likely
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Of the following issues, which is the most significant environmental challenge facing Africa today?A. deforestation due to the
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The Aswan High Dam in Egypt controls the waters of the Niger River.Please select the best answer from the choices provided T F
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Serengeti National Park is a game preserve located in Tanzania.Please select the best answer from the choices provided T F
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Analyze the image below and answer the question that follows.2041-04-03-05-00_files/i0120000.jpg Photo by Dentren The herding
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What is the primary purpose of a game reserve?A. to protect animals from hunting B. to protect farmland from desertification C.
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Analyze the image below and answer the question that follows.2041-04-03-05-00_files/i0100000.jpg Photo by Diorit The picture
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“Tavy” farming in Madagascar is another name forA. organic farming B. slash and burn farming C. commercial farming D. coffee
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Marine life in the Nile River Delta region has __________ because of the Aswan High Dam.A. become extinct B. not changed C.
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__________ is the reservoir created by the Aswan High Dam.A. Lake Tanganyika B. Lake Malawi C. Lake Nasser D. Lake Victoria
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The mountain gorilla in the __________ is severely at risk for extinction.A. Sahara Desert B. tropical savannas C. Congo
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The Serengeti National Park is a popular game reserve in __________.A. South Africa B. Uganda C. Mozambique D. Tanzania Please
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Most African people work in __________.A. agriculture B. slash and burn farming C. mining D. manufacturing Please select the
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To modify the land means to __________ the land to meet particular needs.A. preserve B. destroy C. farm D. change Please select
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In recent years, civil wars in Angola and Sierra Leone have been funded primarily through the sale of __________.A. iron B.
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Analyze the map below and answer the question that follows.A topographical map of Africa. Oil rig, diamond, gold bar, and
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Developing economies, like Nigeria’s, are in the process of moving from a(n) __________ to a(n) __________ economy.A.
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Uranium is used primarily __________.A. to make jewelry B. as a source of fuel in nuclear power plants C. in the manufacture of
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South Africa has a diversified economy. This means that __________.A. most people farm a single crop, and if the crop fails, the
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In Nigeria, 80% of the government’s budget is funded by __________.A. tariffs on imported goods B. taxes on its citizens C.
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A long period of time with no rainfall is called a __________.A. sirocco B. famine C. flood D. drought Please select the best
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Conflict diamonds are diamonds that are mined to help pay for __________.A. schools B. food C. wars D. dams Please select the
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Which of these statements best describes how Nigeria and South Africa are alike?A. Both countries have a history of apartheid.
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To solve the problem using equivalent ratios, we start by understanding what is meant by "400% as many grapes."Translate
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Today, Reza ate 20 grapes, which was 400% as many grapes as he ate yesterday. Explain how to use equivalent ratios to find the
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Ava ate 5 wheat crackers, or 5% of the entire box. How many crackers were in the box?crackers were in the box.
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150 is 25% of what number? Four students solved this problem using equivalent ratios. Choose the student whose work is correct.L
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At Park Junior High, 10%, or 160, of the students, play a musical instrument. How many students attend the school?A tape
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Look at the list of mixtures and select the ones that could be separated by magnetism. Check all that apply.beach sand nickel
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Complete these sentences describing various separation processes.Screening and filtering both rely on differences in the of the
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What is South Africa’s biggest economic challenge?A. It has few natural resources. B. Its economy is too dependent on the
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Oil revenue is responsible for about what percentage of Nigeria’s GDP?A. 10% B. 40% C. 75% D. 90% Please select the best
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What percentage of people in Africa do not get enough to eat?A. 10%, or 1/10 B. 33%, or 1/3 C. 50%, or 1/2 D. 75%, or 3/4 Please
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Most people in Africa __________.A. farm cash crops B. work in manufacturing C. farm and herd at the subsistence level D. are
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Conflict diamonds are sometimes called “blood diamonds” because __________.A. diamonds are more valuable than blood in parts
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Uranium is used primarily __________.A. to generate electricity B. in the creation of weapons C. in the electronics industry D.
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Analyze the graph below and answer the question that follows.A 5-column table with 3 rows. Column 1 has entries Literacy rate,
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Which of the following statements best describes fertility rates in sub-Saharan Africa?A. Fertility rates are among the lowest
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Which of the following items handcrafted in Africa would be most likely made by a woman?A. a reed basket B. a musical instrument
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How many languages are spoken in Africa?A. less than 25 B. between 25 and 100 C. between 100 and 1,000 D. more than 1,000 Please
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Analyze the graph below and answer the question that follows.A 5-column table with 3 rows. Column 1 has entries Traditional
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All of the following countries have average development except __________.A. Botswana B. South Africa C. Zimbabwe D. Namibia
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If a region is linguistically diverse, this means that it has a wide variety of __________.A. musical instruments B. ethnic
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Which group of people live primarily on Africa’s eastern coast, are of mixed Arab-African ancestry, and usually practice
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T. J. received this postcard in the mail.Dear T. J., Grandpa and I are having a wonderful time in New York City. Yesterday we
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Which contrast best helps develop the theme of friendship in this chapter of Roll of Thunder, Hear My Cry?the contrast between
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In a group discussion, a student says that Frida Kahlo would never have given up on her artwork. Which statement is the best
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Identify the heterogeneous mixtures from the list. Check all that apply.salad dressing hydrochloric acid solution orange juice
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What is the correct classification of a mixture in which both a solid and a liquid are visible?a homogeneous mixture and a
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Hana fills a cup with sandy ocean water. She pours the mixture through a filter. What does she collect that passes through the
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Fog is composed of water droplets in air. Which term describes fog?solution colloid suspension solvent
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Which is a characteristic of colloids?are homogeneous mixtures have large dispersed particles will settle out over time are made
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Which is a property of every heterogeneous mixture?The mixture is made up of at least two different states. The mixture is made
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Eli states that sodium phosphate is a mixture because it is composed of both sodium ions and phosphate ions.Which is the best
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Which substance gets broken down in a homogeneous mixture?colloid solution solute solvent
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Which is a property of every mixture?One substance dissolves in another substance. The molecules of one substance break down in
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Which would most likely form a homogenous mixture?10 marbles mixed with 10 small balls a pinch of sugar mixed with a cup of
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Dominic made the table below to organize his notes about mixtures.A 1-column table. The first column labeled properties of
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Raj and his friends went to the movies today and ate 875 pieces of popcorn, or 125% more than they ate when they went to the
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A tape diagram. 80 percent out of 100 percent of students had an A or B. 20 students out of question mark students had an A or
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At her brother’s birthday party, Lisa ate 80 pretzels, or 20% of a bag.A tape diagram. Lisa ate 20 percent out of 100 percent
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Which equation can be used to find 30 percent of 600?StartFraction 600 times 6 Over 100 times 6 EndFraction = StartFraction 3600
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Which equation can be used to find 40 percent of 25?StartFraction 25 divided by 1 Over 40 divided by 1 EndFraction =
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When two substances that cannot dissolve each other are mixed, amixture is formed. A heterogeneous mixture that has very small
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When using a liquid as a solvent, what could be the state(s) of matter of the solute?solid When trying to dissolve a liquid,
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During which changes of state do atoms overcome the attractive forces between them?freezing and condensation boiling and
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Which statement best describes the energy changes associated with evaporation and boiling?Atoms gain energy during evaporation
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A cylinder at left with balls evenly spaced throughout the cylinder has an arrow leading to a cylinder at right cylinder with
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Freida wants to model the way atoms move when a substance changes its state. To do this, Freida makes a pyramid of marshmallows.
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A cylinder at left with balls stacked near the bottom of the cylinder has an arrow leading to a cylinder at right cylinder with
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Enrique has to pay 80% of a $200 phone bill. Explain how to use equivalent ratios to find 80% of $200.
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For homework, Ari had to find 5% of $900. Did he do the work correctly?A tape diagram. There are 5 parts out of a whole of 100.
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A tape diagram. There are 175 Saturday tickets sold out of 100 Friday tickets sold. There are question mark Saturday tickets
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The number of 7th graders attending Middlefield Science Academy this year is 130% of last year’s total. If 500 7th graders
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60% of the 50 students in Jessie’s gym class are 12 years old. How many students in Jessie’s class are 12 years old?A tape
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A tape diagram. There are 65 students out of 100 students who ride the bus. There are question mark students out of 800 students
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The table shows that the ratio of boys to girls at Midtown Middle School is 3 to 4.A 2-column table with 4 rows. Column 1 is
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Those high school students are old enough to go to the movie by __________.Choose the correct reflexive pronoun to complete the
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The birthday cake had so many candles Jessica could barely blow them out.Replace the underlined words with the correct pronoun.
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Describe one way you persevered to complete a school assignment. Use at least three pronouns in your response, including one
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Which sentence shows a precise use of pronouns?Kyle and Joe were often partners in tennis, but he was a better player. Kyle was
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The race was about to start. Katie stepped onto the track. The other runners lined themselves up as well. Katie really wanted to
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Rachel had spent the night at Lisa's house. Rachel woke up very thirsty. Lisa and her parents were still asleep. So Rachel
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Which sentence shows the correct use of personal pronouns?"This is Silvia. She is my best friend. Next week, we will go to
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Ben walked across the field. He looked up at the stars. It was a clear night, so they twinkled brightly in the dark sky. It was
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Use the drop-down menus to select the pronoun that correctly completes each sentence.I don't think wanted to get out of bed this
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Use the drop-down menus to select the sentences that show precise use of pronouns.1. Fred visited Nick after his graduation. 2.
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Highlight the intensive pronoun in this passage.I know that your little brother likes to play with your new dog. However, Fluffy
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Which word in this sentence could be replaced with a personal pronoun?Gina felt very nervous before giving her speech. Gina very
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Read the excerpt from Esperanza Rising.Esperanza looked down at Silvia's dirty hands. Silvia grinned up at her and Esperanza's
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Read the lines from Esperanza Rising."Mama," said Esperanza. "Your hair!" Mama's hair ran down her back in a single long braid,
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