David, Priya, and Avery are super detectives observing a mysterious case of a glass filled with ice and water. The glass was completely dry on the outside. But, as if by magic, after ten minutes, they spotted drops of water forming on the outside of the glass.

Which statement best solves this chilly mystery?

Maya, Aria, and Benjamin are on a science adventure! They're curious about the world around them and have a challenge for you. Can you help them rank these items from most dense to least dense?

Students use a circuit to investigate the properties of six objects. The buzzer makes a sound if an object completes the circuit. The circuit and observations are shown.

Evelyn is on a fun science adventure, classifying various objects. Which question should she ask to discover if an object is a shiny, cool metal?

Which conclusion can be made about the samples based on the table?

A group of students is given four small cubes of the same size and instructed to place them in a beaker of water. One cube floats to the surface of the water. Two of the cubes float in the middle of the beaker under the surface of the water. The last cube sinks to the bottom of the beaker. Which conclusion is best supported by what the students observed?

The pictures show tools that can be used for separating mixtures. Which mixture is paired with the best tool for separating the materials?

Imagine Arjun, Samuel, and Anika are conducting an experiment in their school's science lab. They follow a four-step procedure:

1. They grind 50 grams of breakfast cereal into a fine powder. 2. They dissolve the powdered cereal in 500 milliliters of warm water, forming a solution. 3. Using a strong magnet, they explore the solution at the 250-milliliter mark of the beaker. 4. They stir the mixture for three minutes, observing the changes.

What are these curious students attempting to extract from the cereal?

Imagine Nora and Emma are on a fun science adventure! Nora decides to experiment by pouring 14 grams of sugar into a jar filled with 500 milliliters of water. With a big smile, Emma helps Nora stir the sugar and water thoroughly to make a magical solution. What enchanting change most likely happens to the sugar when it joins the water party?

When the straw is released by a student, the air from the balloon comes out. Which statement best describes the motion of the car when the straw is released?

What force causes the wagon to stop?

Imagine Noah and Abigail are setting up a cozy terrarium for their new pet lizard, Aiden. As night approaches, they ponder over what could keep Aiden warm and snug. Which of these could they use to ensure Aiden survives the chilly nights?

A student uses the setup shown to investigate ways to speed up evaporation. Which forms of energy are being compared in the student’s investigation?

In an exciting science class adventure, Lily, Jackson, and Scarlett are observing a pet turtle named Turbo in a small, clear plastic pool. The trio turns on a portable camping lamp, clamped securely to a counter next to Turbo's pool, to get a better look. What kind of energy does this adventurous lamp use to light up Turbo's day?

Imagine Aria, Arjun, and Elijah are on a mission to save the city by defusing a bomb. They've encountered a tricky mechanism with four wires connected to lightbulbs. Cutting one of these wires at the right numbered position will ensure two of the lightbulbs remain lit, helping them to disarm the bomb safely. At which numbered position should they cut the wire?

Charlotte, Ethan, and Avery are having a science fair challenge! Can you help them put these liquids in order from most dense to least dense?

Imagine Elijah, Aria, and Harper are playing at the beach. They decide to mix sand and water in a bucket. What do you think will happen next?

Imagine James, Rohan, and Noah are on a quest to become master chefs! In their culinary adventures, they discover that two or more materials mixed together can always be separated into their original ingredients. What do they call these magical culinary creations?

A prickly pear cactus is shown here. The roots of the prickly pear cactus spread out in a wide underground network. How does this type of root system benefit a prickly pear cactus? (5.9A)

An African savanna is a grassland with shrubs and a few small trees. It has warm temperatures all year long, a dry winter season, and a rainy summer season. Which group of animals is most likely supported by an African savanna? (3.9A)

Which of these describes one or more living organisms that depend on another living organism to survive? (5.9A)

The picture show two views of a certain fish. How does the appearance of this fish most likely help it survive?

Some beetles break down the remains of dead animals. Some mushrooms break down the remains of dead trees. How do these actions most benefit plants?

In fall and winter many trees lose their leaves in response to cooler temperatures and ----

This biome covers 75% of earth and can be found in or near each continent.

An organism that uses sunlight to make its own food for energy.

A path of energy transfer from one organism to another.

Kudzu, a plant native to eastern Asia was introduced into America in 1876. In 1935, kudzu was planted along southern roadways to control soil erosion. Adding a foot of vine a day in the spring and summer, kudzu quickly grew out of control. Why can introducing a new species to an existing ecosystem of be a disaster?

What is a fossil?

Which layer of sedimentary rock is the oldest?

This table gives information on different fossils. According to the information on the table, finding which fossil in a region would lead to the conclusion that the area was, long ago, covered with trees?

Which of the following uses mechanical energy?

What is friction?

How many moon phases are there?

What is the name of this phase of the moon?

Which phase of the moon is represented here?

Which phase of the moon is represented here?

What is the name of this phase of the moon?

What is the name of this moon phase?

What phase of the moon is represented here?

Which moon phase is represented in this photo?

What phase of the moon is pictured here?

Which is the correct order of the planets? Starting with closest to the sun.

The arrow is pointing to which planet?

Which of these cycles is a direct result of Earth's rotation? (5.8C)

On which side of a house in Texas should a window be placed so that the people inside the house can see the sunrise each day through the window? (5.8C)

Some students used a globe to model the rotation of Earth. They shaded in Texas on the globe, as shown in the picture. They rotate 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? (5.8C)

A student draws diagrams of her house and the location of the sun in the sky. Which diagram does not correctly represent the location of the sun at the time indicated? (5.8C)

A student is looking for evidence that Earth is always rotating on its axis. Which of the following would provide the best evidence? (5.8C)

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? (5.8C)

These 4 carts are all pushed with a low force. Which cart will go the fastest speed?

Fox squirrels live in the trees of city parks throughout Texas. Each spring they build nests of twigs and leaves in the tops of the trees. Fox squirrels are often found near park benches, waiting to be fed by visitors. For fox squirrels, which of these is a learned behavior? (5.10B)

Crayfish live in water and often hide under rocks or plants. They come out to look for food and will eat both plants and animals. Which of these is a trait that a crayfish most likely inherits from its parents? (5.10B)

The caterpillars of monarch butterflies eat milkweed leaves. Milkweed leaves contain sap that is toxic to many animals but not to monarch butterfly caterpillars. This sap makes the monarch butterfly caterpillars toxic to predators and protects them from being eaten. Which of these is an inherited trait of monarch butterfly caterpillars? (5.10B)

For a science assignment a student was asked to observe some organisms and then make a table to classify the organisms' traits as inherited or learned. The student's table is shown. How many of these observations describe learned behaviors and how many describe inherited traits? (5.10B)

Which of these is a behavior that a person learns rather than inherited? (5.10B)

A student wants to create a model that shows how sand dunes are formed. First, she places sand in an aluminum pan. What’s her next step?

How did the delta at the end of the Rio Grande form?

When waves drop sand on the beach, it is...

Students conducted the experiment above. They added 200ml of water into the clay soil, and collected the water that drained through the soil. They then repeated this with silt and sand. What question were the students trying to answer with this investigation?

When water enters the cracks in a large rock

and freezes, the water expands. Over time,

water freezing and thawing –