About how tall is this mushroom?

The picture shows a magnified view of a tick on a penny. About how long is the tick?

According to the picture, which measurement best identifies the length of the leaf?

About how much longer is the jackknife clam than the razor clam?

What is the length of the tadpole?

Based on information in the diagram, about how tall is the tree?

Three measurements of the same leaf were taken during June. Based on the graph, how much did the leaf grow in length from June 1 to June 30?

The wingspan of this moth is about —

What is the length of this caterpillar?

By August, a student noticed that the sunflowers outside his house were as tall as the back door of his house. About how tall were the sunflowers?

Over the period of one year, a rock wall shifted 15 millimeters. Which of these lines best shows the distance the wall moved?

The picture shows a thermometer in a room. What is the temperature of this room?

If 5 milliliters of vinegar are added to the water in the cylinder, what will be the total volume of the liquid?

Students filled a graduated cylinder with the amount of water shown. How much more water needs to be added to the cylinder to measure 25 mL?

What is the difference between the water level in the cylinder before and after the rock was added?

Based on the picture, the bag of leaves has —

Which of these is the most accurate reading of the mass of the rock on the balance scale pictured?

What is the mass of this mineral?

Which of the following measurements is most likely the mass of a pencil?

Amanda studied the mass gain in chickens for her science project. Which of these is the mass of this chicken?

Which item below would have a mass closest to that of a thumbtack?

The distance between Richmond and Norfolk is best measured in —

Which unit is best to use for measuring the width of oak tree leaves?

This surveyor is measuring the distance of a road. The most appropriate units to measure this distance are -

During a study of the human body, students are asked to observe the back of their hands and record their observations. What units would be most appropriate for measuring the width of their hands?

Students must conduct an experiment in which they find out how long a rubber ball bounces before it comes to a stop. Which unit would be best for recording this information?

The capacity of an automobile gasoline tank would most likely be measured in -

The height of a tree would best be measured in —

Which of these units would be best to use to measure the amount of water in a test tube?

Students collect pond water in their beakers. Which is the best unit of measurement for the volume of water they collect?

Which tools would be needed to measure the size and the mass of a block of wood?

Which tools are best used to determine the speed of a turtle as it walks along a path?

Which of these is needed to measure the mass of a rock?

What tool is used to determine the mass of an object?

Which is the best tool for measuring the temperature of lake water?

Which of these should be used to accurately measure 250 mL of water?

Which of these would be the best tool to measure the volume of water absorbed by a sponge?

A student wants to compare the masses and volumes of three marbles. Which two instruments should be used?

Which of the following instruments is used to measure mass?

Juan is doing an experiment to see how long it takes an acorn to grow into a 0.5-meter-tall oak tree. Which two instruments should he choose?

Which of these would be used to measure the mass of a marble?

Which of these is the best tool to use when measuring the water depth at the edge of a pond?

A group of students tested the effects of different amounts of water on ivy plant growth. Afterwards, they could not remember how much each plant grew per day. What should they have done to practice good science?

According to the picture, which of these is an inference rather than an observation?

Which of these is a conclusion rather than an observation?

Based on the picture above, which of these is a conclusion rather than an observation?

Which of these can be observed in this picture?

Which of the following is an observation about grasshoppers that a science class could have made on their nature walk?

Students notice that in the fall leaves of sugar maple trees turn red, but the leaves of black oak trees turn brown. The students are making —

A group of students was preparing an activity to determine whether certain materials will float or sink when placed on water. Before the experiment started, one student said, “I think the sponge will float.” This statement was —

Sandy grows roses along her walkway. The roses close to the street had more blooms than the roses close to the house. Which statement is a hypothesis Sandy could make about her roses?

Max is doing an experiment on tomato plants. His hypothesis is, “A tomato plant will not grow in a shady area.” On which of these relationships did Max base his hypothesis?

To find out which soil absorbs moisture best, each container shown must —

Two students wanted to find out which of their toy race cars would go the farthest. They let each car roll down a ramp and then measured how far the cars rolled. Which of these should be held constant if they want a fair test of their cars?

Three baseball players investigate to see who can throw a baseball the farthest. They mark off an area on the playground for their investigation. Which should they keep constant?

A student set up an experiment to test how much bean plants will grow in soil with salt in it. The student grew 50 plants in one group and 50 plants in the other group. The only thing that can be different in the two groups is the amount of —

Students want to learn which of two soils holds more water. They put clay in one bottle and sand in the other. Then they put equal amounts of water in the bottles. Some of the water drained into beakers. Which of these is the manipulated, independent variable?

The pictures show how one student tried to see how the heat from a light bulb affected the rate of evaporation of a liquid. What is the only variable being changed in this experiment?

A student designed an investigation to test the effect of light color on plant growth. What was the manipulated (independent) variable in the investigation?

Students planted bean seeds in the same kind of soil in separate cups. The cups were put next to each other on a sunny windowsill. Cup 1 was given 10 mL of water every other day. Cup 2 was given no water. Which of these is the independent (manipulated) variable in the experiment?

In an experiment, Jackson tested to see how the size of rocks affects the amount of dirt that washes away when water flows downhill. Which variable was manipulated?

Sandy is conducting an investigation to find out which food his dog likes best. Which is the manipulated variable in his investigation?

Todd observes that his strawberry plant has grown little green strawberries. Which of these is a prediction Todd might make about his strawberry plant?

Which of these is the fairest way to find out if sand or silt will settle faster when mixed with water?

A student wants to show how much the use of gasoline has increased over the last ten years. This information would best be displayed in a —

Students want to find out if an empty can rolls down a ramp faster than a can filled with sand. Which of these would be the fairest way to find out?

A student thinks that orange juice will freeze faster than any other substance. She fills identical containers with the same amount of different liquids, then places each in the freezer. She checks them every five minutes and discovers that the orange juice is the last one to freeze and the water is the first to freeze. Which should the student do next?

Which is the fairest way to find out if salt water boils faster than fresh water?

Using the picture and classification key, what is this animal?

Lee uses a microscope during science class. He sees this organism in a drop of water. Which organism did he most likely see?

Based on the information in the table, the best way to tell gold from pyrite is by which property?

Plants use their location and flower color to attract pollinators. A plant with red flowers living along a woodland stream would most likely be pollinated by which of these butterflies?

According to the identification key, what type of creature is creature Y?

According to the information in the chart, which of the following rocks is a sedimentary rock?

A student observes a mineral that is colorless and harder than glass. Based on the chart, which mineral is the student observing?

Based on the bird of prey key, which bird is shown in the picture?

According to the table, which animal is an arachnid?

Which of these belongs in square A of this flow chart?

Which line graph best shows the data in the table?

The results of this experiment show that the bigger the jar, the

The chart shows the number of flowers seen in a field. Which of these best shows these data?

The picture above shows some different kinds of seed pods. Which graph correctly shows the number of seeds in each pod?

A student is writing a report on recycling. The student learns that different kinds of material are recycled in different amounts. Which graph best shows the data?

The picture shows some insects Dana saw while she was out walking. Which graph best represents what Dana saw?

The picture shows some animals. Which graph most accurately shows the number of animals in the picture?

The picture shows the development of a delta over a two-year period. According to this information, about how far did the delta reach into the ocean after 1997?

Jack grew some very small organisms in a jar of pond water. Each day, he counted the number of organisms he saw on a slide. Then he estimated how many organisms were in the jar. On what day were almost all of the organisms dead?

Jack grew some very small organisms in a jar of pond water. Each day, he counted the number of organisms he saw on a slide. Then he estimated how many organisms were in the jar. About how many organisms did he estimate were in the jar on day 15?

Which of these is probably the slowest fish?

A student uses the equipment shown above to study which liquid is the thickest. What information is the most appropriate to record?

According to the graph, which combination of food would probably bring the most birds to the feeder?