A spider making a web is an example of a .........

Which of these will most likely happen when prairie dogs are removed from an area?

The starting temperature of a beaker of water is 19 degrees Celsius. The thermometer shows the temperature of the same beaker of water after being heated on a hot plate. How much warmer was the water after it was heated?

When a substance is cooled, the density of its molecules

Which way does thermal energy flow?

Which of the following have the most thermal energy?

Two solid blocks are heated to the temperatures shown. The blocks are placed so they touch.

Which diagram shows the direction heat will flow?

Two identical blocks are heated to different temperatures. The blocks are placed so that they touch, and heat begins to flow between the blocks. The pair of blocks is insulated, so no energy escapes.

Later, the temperature of each block is measured again. Which pair of temperatures is possible?

In class, we have drawn models of what is occurring at each of these locations. Select the image below that BEST models what this looks like at location A.

In class, we have drawn models of what is occurring at each of these locations. Select the image below that BEST models what this looks like at location B.

In class, we have drawn models of what is occurring at each of these locations. Select the image below that BEST models what this looks like at location C.

In class, we have drawn models of what is occurring at each of these locations. Select the image below that BEST models what this looks like at location D.

This photograph shows a beach on a partly sunny day. Which of the following is an interaction between the sun and the ocean that results in clouds forming near the beach?

Heat transfer is really neat! It always goes from

How does an alluvial fan form?

What is a mass of material deposited in a triangle or fan shape at the mouth of a river or stream? It is different from when materials are deposited at the bottom of a slope.

New deposition seals off the ends and the cut-off becomes an ________________ that will eventually dry up.

A student draws a model showing the movements of Earth, the moon, and the sun. Which arrow shows the movement that causes day and night on Earth?

Which of the following examples most closely represents what it means to be an element?

Some students added sugar to three cups of water. The water in each cup was a different temperature. They stirred each cup of water after adding the sugar. Their data is shown in the table. Amount of Sugar (grams) | Water Temperature (°C) | Time to Dissolve (seconds) 3 | 5° | 45 3 | 30° | 25 3 | 75° | 5 Which of these BEST explains why the sugar dissolved at the rate it did?

Three students tested how quickly salt dissolved in water at different temperatures. They used the same amount of salt each time. Their results are shown below.

Amount of Salt (grams) | Water Temperature (°C) | Time to Dissolve (seconds)
3 | 10° | 60
3 | 40° | 30
3 | 70° | 10

What conclusion can be drawn from this experiment?

A group of students wanted to find out how temperature affects the rate at which a solid dissolves in water. They added the same amount of baking soda to three cups of water at different temperatures and stirred each cup. Which variable did they change in their experiment?

Based on the data below, which statement is MOST accurate?

Amount of Sugar (grams) | Water Temperature (°C) | Time to Dissolve (seconds)
3 | 20° | 35
3 | 50° | 15
3 | 80° | 4

A student is performing an experiment to see if temperature has an effect on the rate of solubility. Is his setup correct?

Some students used a globe to model the rotation of Earth. They shaded in Texas on the globe, as shown below. They rotated the globe and observed that Texas was in exactly the same place after each rotation. The students could rotate the globe quickly or slowly. If the globe could rotate only at the rate that Earth actually rotates, about how long would each complete rotation take?

A student uses a spring scale to pull a 50-gram block horizontally across a wood desk. Then the student pulls the block the same distance across surfaces of carpet, sandpaper, and glass.

A student uses a spring scale to pull a 100-gram block across a tile floor. The student repeats the experiment using surfaces of rubber, metal, and plastic.

A student pulls a wooden block with a spring scale across a smooth marble surface and then across a rough concrete surface.

A student uses a spring scale to pull a block across four different surfaces: wax paper, felt, cardboard, and aluminum foil.

What is force?

Which of the following is NOT a type of force?

What is motion?

What does gravity do?

If you slide a hockey puck on ice, it eventually stops because of:

Which unit is used to measure force?

What is inertia?

Which of the following would require more force to stop quickly?

What force is being measured on this spring scale?

What is the maximum amount of force that our spring scales will measure

Two cities recorded temperatures of 21 degrees Celsius, winds of 15 km/hr, and 3 cm of rain. What could still be different when comparing the cities?

A worker built a sidewalk and pressed some large salt particles into the concrete while it was still wet. When the concrete was dry, the worker washed the sidewalk with water. The picture below shows the sidewalk after it was washed. What most likely happened to the salt?

What would most likely happen if sugar crystals were pressed into wet concrete and then the sidewalk was washed with water after drying?

After washing a sidewalk where salt was pressed into wet concrete, what evidence would you expect to see if the salt dissolved?

Why does salt disappear from the surface of concrete when water is poured over it after the concrete dries?

What is a solution?

A student draws diagrams of her house and the location of the sun in the sky. Which diagram below does NOT correctly represent the location of the sun at the time indicated?

What force causes Venus to travel along a curved path instead of moving in a straight line as indicated by the dashed line in the diagram?

All of these are related to the formation of oil or natural gas EXCEPT—

Which of the following is NOT a necessary condition for the formation of natural gas?

Oil and natural gas are most commonly found in which type of rock?

Which process is primarily responsible for converting dead plants and animals into fossil fuels?

The picture below shows a river delta. The river is flowing into the ocean. (Refer to the diagram of the river delta and ocean.) How do river deltas change over time?

What is a deposit of sediment laid down to rest at the mouth of a river called?

What is a body of saturated underground rock containing water?

This landform is made as pressure compacts snow to form an ice sheet.

what is this

name this picture

name

Refer to the table on Energy Resources. What best replaces the X in the table?

A partial forest food web is shown. In this food web, energy is transferred directly between —

Which fact best describes one way this bird changes its environment to meet its needs?

How does this bird modify its surroundings to help it survive?

What is one way this bird changes its habitat to fulfill its needs?

Which action shows how this bird adapts its environment for survival?

What effect does the rapid growth of kudzu most likely have on an ecosystem?

Which of the following is a likely consequence of introducing an invasive plant species like kudzu into a new environment?

How does the spread of kudzu typically affect the biodiversity of an ecosystem?

What is one reason why kudzu is considered a threat to native plant species?

An invasive species is a plant or animal that is ________ to an ecosystem.

Kudzu is an invasive plant species in the southern part of the United States. It is a fast growing vine that can cover fields and trees. The image provides evidence of kudzu's rapid growth in an area.

How does kudzu's rapid growth impact native plant populations?

Why do the populations of invasive species grow so quickly?

Some students are using samples of different substances for a lab investigation. They plan to observe the physical properties of each substance and record their observations in a table like the one below. Data Table Sample | Substance | Observations 1 | S | 2 | N2O4 | 3 | Fe | 4 | O2 | 5 | LiF | 6 | Sr | 7 | Al | Which of the substances observed are elements?

When there is one type of atom

When there is 2 or more atoms combined together

In which mixture can you see all of the parts?

In which mixture can you not see all of the parts?

A student read a brochure about the Piney Woods of Texas and learned the average annual rainfall is 40-52 inches (100-150 cm) each year and the humidity is typically high. The information the student read is called —

A wide U-shaped valley is shown in the photograph below. This valley was most likely formed by —

Which of the following landforms is most likely created by the movement of glaciers?

What is the primary process responsible for carving out U-shaped valleys in mountainous regions?

Which feature would you expect to find in an area that was once covered by glaciers?

What is the place between two mountains called?

Sally grew 4 different types of plants in an enclosed greenhouse. She placed each plant in the same size planter and used the same type of potting soil. Each plant was placed in a corner of the greenhouse and received the same amount of water and fertilizer. Each day, Sally was careful to keep the greenhouse sealed and the temperature at the same level. As the plants grew, Sally recorded her observations in the table above. Plant 1 did not produce any seeds. What is the most likely reason?

Look at the graduated cylinder labeled 15 ml

Refer to the diagram of the Prickly Pear Cactus. Which two traits best help a cactus conserve water in the dry conditions of a West Texas desert ecosystem?

Shelley has a balloon with a small amount of baking soda in it. She fits the open end of the balloon over a graduated cylinder containing some vinegar. As she lifts the end of the balloon, the baking soda pours into the vinegar causing bubbling and fizzing to occur. Marie observes the balloon begin to "fill" up. Based on these observations, which of these can Marie determine about the new substance formed by mixing baking soda with vinegar?