The teacher gave each group of students 4 equal sized containers with a different liquid in each one. Each container had 50mL of the liquid. The students were to determine the density of each liquid and layer them. Which of the following is the best to do to determine the density of each?

Which of the following will change a liquid to a solid?

Ling placed 20 grams each of water, orange juice and brewed coffee in an ice tray. She wanted to see which one would have more mass after it was frozen. Which of the following will most likely be Ling's conclusion?

Matthew received an unknown mixture in his science class that weighed 60 grams. After sorting the mixture’s contents into 5 groups, he weighed each group and got the following results:

What is the weight of group 5?

Rachel bought 1 pound of potatoes. She peeled the potatoes. She then weighed the peeled potatoes. They weighed less than one pound. Which of the following predictions would be correct if Rachel weighed the peels with the potatoes?

Honey Bunches of Oats is Hunter’s favorite breakfast cereal. This cereal has nuts, oat clusters, and flakes in it. What is Honey Bunches of Oats?

Which of the following best describes the difference between a cereal and salt water?

Which of the following is an example of a chemical change?

What is the difference between a physical and chemical change?

Merry wanted to examine the tiny living organisms in pond water. She placed some pond water in a glass and looked at it. She did not see any tiny organisms.

Which of the following would be the best tool for Merry to use to determine if there were organisms in the pond water?

The students in Mr. Santo’s class each received a slide containing salt. The students were asked to observe the salt with just their eyes. The students then had to predict what the grain of salt would look like when viewed under a microscope.

Which prediction would be correct?

Mary put an egg into some water in a pot and let the water boil until the egg was cooked. How was thermal energy (heat) transferred to the egg during this process?

Gloria is making a simple electrical circuit using materials that include a battery, two wires and a light bulb. She used all of the materials but the light bulb would not light up.

Which is the best explanation of why the light bulb did not light up?

Gregory wanted to learn how to shoot a bow and arrow. He placed the arrow in the bow, stretched the bow, and then let the arrow go toward a safe target.

What type of energy does a stretched bowstring have?

What type of energy does the arrow have after it has been shot?

Josh wanted to know how hot the bulb on his desk lamp got. When he put his hand near the light bulb he could feel some heat. What could Josh do to measure how hot the lamp on his desk really got?

Electricity is needed in order for a light bulb to light up. When a lamp is plugged into the socket and turned on it will light up. Which of the following explains the energy changes that took place when the light bulb lit up?

Joann made some hot chocolate to drink. She stirred the hot chocolate milk with a metal spoon and noticed that the spoon handle felt warmer after resting in the hot chocolate for a few minutes.

What type of energy transfer was she observing?

Peter’s brother put gas in the car so she could drive to the library. Gas is fuel that powers the car.

What type of energy change takes place when the car is started and moves forward?

The newspaper had an article that stated that there are many more white cars than darker cars that travel the highways in Florida. This is because white cars reflect the sun’s rays and darker cars absorb them.

Which of the following would be the best way to prove that this statement is right?

Jasmine wanted to build a solar cooker to make a snack called “S’Mores.” She covered a small box with aluminum foil. She placed a cookie sandwich that contained chocolate and marshmallows in the solar cooker. She placed the solar cooker in the sun. After thirty minutes the chocolate and marshmallows melted. Which of the following explains why they melted?

Mary and Andrew were playing with their small toy cars. They set up a ramp to see which car would travel the farthest. Which of the following tools would be best to use to measure how fast and far the cars traveled?

What would Mary and Andrew need to know in order to calculate the average speed of the cars?

Sound can travel through many different kinds of materials.

Which of the following does sound travel through the fastest?

Light also travels through many different kinds of materials.

Which of the following materials will allow light to easily travel through it?

Henry visited the circus. He saw a man standing on one end of a seesaw. All of a sudden a large object came down on the other end of the seesaw and propelled the man way up high into the tent. He came down and landed in the net without getting hurt. The seesaw is an example of which simple machine?

Which force caused the man to fall into the net?

A ping pong ball, baseball, kickball and tennis ball were in a box on the playground. Which of the ball would take more force to throw?

John and his friend were kicking soccer balls down the field. What would John need to do to kick the ball farther than his friend?

Fred wanted to move a large pumpkin out by the front of his house. He began to roll the pumpkin but didn’t get very far because it was heavy. His friend Harry came along to help. What would Fred and Harry need to do in order to move the pumpkin together?

The small rocks in soil come from which of the following:

Which of the following combinations would form a soil good for growing most plants?

What part of the Earth’s surface is covered by land?

Which covers more of the surface of the Earth?

What happens when warm very moist air travels from the ocean and moves inland over hot, dry land?

When a warm moist air mass moves toward a mountain range what happens?

Mountains and valleys are formed and changed by shifts in the Earth’s crust.

Which of the following is true?

Shifts in the Earth’s crust take place during which of the following?

Which is an example of a rapid change that occurs to the surface of the Earth?

Which is an example of a slow change in the Earth’s surface?

What is an example of reducing the amount of natural resources we use?

Why is recycling our natural resources important?

The Earth is tilted on its own axis as it rotates. Which of the following is caused as a result of the Earth’s tilt?

Which of the following is a result of the tilt of the Earth on its own axis as it revolves around the sun?

Juan likes to look at the sky at night. He noticed that the moon seems to change its shape from day to day, but that the shapes always happen in the same order. Which of the following causes the phases of the moon?

Why is it difficult to see a “New Moon” from the Earth?

Many of the forms of energy we use on Earth are transformed from sunlight energy. Which of the following transforms energy from the sun?

Which of the following forms of energy come to Earth directly from the sun?

The planets in our solar system come in many different sizes. Which of the following is the largest planet in our solar system?

One planet is known as the “Red Planet” due to the composition of the planet’s soil. Which planet is known as the “Red Planet”?

Xavier and his friend Jim were making observations one evening with identical flashlights. They observed that the farther apart they stood from one another, the dimmer their flashlights appeared to be, and the closer they came to one another, the brighter their flashlights appeared. They looked up at the night sky, which was full of twinkling stars. What conclusion might they draw about the stars from their flashlight model?

Jill and her father observed the Big and Little Dippers at the same time each evening for four weeks, using a tree in her yard as a reference point. They made sketches of their observations and noticed that the constellations changed their positions relative to the tree in her yard over this time period.

What caused this apparent change of position?

Which human body system’s primary job is to breakdown nutrients for use throughout the body?

Daniella recorded her breathing rates and heartbeat when she was exercising. What two body systems was Daniella focusing on with the data she recorded?

Based on the data in the chart, which exercise works Daniella’s body more?

James was walking through the wooded area of a park when he noticed a family of woodpeckers living in a hole in a dead tree. He wondered why the woodpeckers were living there. What would be the main reason for the woodpeckers to live in a hole in a dead tree?

Kelp forest of the oceans and trees of the rainforests benefit planet Earth in many ways. Which is a product of BOTH the rainforest trees and kelp forests of the world?

K.J. was reading a list of animal structures. Which of the following best describes what all of the above structures provide for the animals listed?

The skeleton of a mouse and the exoskeleton of a crab are similar in what main way?

Jenna and Cody collided at recess. Jenna put a small bag of ice on the bump on her head. Cody put a small bag of ice on the ankle that he twisted. What type of cells helped them register the pain and the coldness of the ice?

What type of cell is primarily at work when a snail retracts into its shell or an octopus reaches for a crab?

When you began to tie your shoes, you were demonstrating what kind of characteristic?

John is the only one in his class that can roll his tongue Marina and George are double jointed. Which of the following best describes these traits?

Lauren and her family went to a lake on a warm, sunny day. They observed that there were more tadpoles under the algae in the lake than out in the open uncovered water. How were the tadpoles interacting with the algae?

What is missing from the diagram below?

The ocean has many levels where different types of organisms compete. What are the most common resources that living things compete for on the ocean’s surfaces?

Many forests have little grass growing directly beneath the trees. What best explains why trees are more successful than grass as they compete in this environment?

Delaney covered both sides of a leaf on a healthy plant with a black piece of construction paper. After 7 days she observed that the covered leaf was much paler than the other leaves. What best explains why this reaction occurred?

During a drought, the farmers were concerned about their orange groves. What would best help them keep healthy crops?

JP’s class went on a walk through the woods and noticed that particular areas had many mushrooms growing in it. Later that year he observed that the same areas had more new green plants growing in it than similar surrounding areas. Mushrooms have most likely changed this ecosystem in what way?

What is one source of nutrients found in soil?

Study the chart below that illustrates a backyard food web. What is the flow of energy in this food chain?

Olga and Ron were classifying groups of animals using a Venn Diagram. How could you label the two classification groups “A” & “B”?

Rotting leaves on a forest floor provide something to the dropped seeds from plants. What do the rotting leaves provide?

Brandon observed that when he opened a split coconut it had mold growing inside. Where was the mold getting most of its energy?

While walking over a bridge Ashli and Taylor noticed that most of the fish population was located in one area of the shallow pond below them. They recorded their observations over four days on the following chart:

What would be the best conclusion they could draw from their data that explains why the fish seemed to prefer being under the bridge?

Johnny Appleseed had planted apple seeds in the desert, would it be likely that the plants would have thrived and flourished if enough water was provided?

As part of their habitat is being destroyed, the osprey, a large predatory bird, must adapt to the changing environment. Parent birds choose the tallest treetops to build their nests and protect their young. As the their natural habitat is being destroyed, where might the osprey build their nests in order to adapt to this change?

The seeds of the milkweed plant form in a pod that eventually bursts open. When it does, the seeds have an attached very light white feathery parachute. Which answer best explains how this attachment increases the milkweed offspring’s chances for survival?

A large population of local frogs had declined over the last few years. When the scientists researched possible explanations they came up with a few reasons. What would be the best choice for the decline in the frog population?

Baby sea turtles head toward light from the moon reflecting off the ocean after they hatch. The coastal residents observed many new baby sea turtle hatchlings heading away from the ocean. What change in the sea turtles’ habitat had most likely confused them?

Why is it most important to keep accurate records during an experiment?

A team of students decided to repeat an experiment because the results they got were different from the group that previously did the experiment. Which of the following would be the best to try first?

Which of the following is the best way that scientists have success when they explore and learn about the natural world?

Why do scientists publish the results of their experiments?

A number of birds that make their nests near a lake have decreased over the last three years. What should scientists do first to help the birds?

Several teams of scientists have been working on new ways to help animals after an oil spill. How can they learn to improve existing methods?

Cristina wants to find out if plants grow better in water than in soil. She puts a tomato plant in water and places it in the sun. What else should Cristina do to find out if plants will grow better in water than in soil?

The auto industry uses dummies in test cars to see what happens when the car crashes into a wall at different speeds. Which of the following best explains why using dummies is helpful?

Scientists want to test a new type of building material to see if it would make the building stronger in an earthquake. How could they safely test this new material?

Mary has packed a warm jacket for her trip this summer. She is going to visit her aunt who lives high in the mountains. Why did she need to pack a jacket?

Billy is packing his backpack to go on a hiking trip. Which of the following tools would come in handy the most while hiking through the woods?

Susie decided to conduct an experiment to see what would happen to different substances when vinegar is added to them. She put a few drops of vinegar in some baking soda, some flour, and some sugar, separately. Then she recorded her observations. What scientific term is used to describe the substances she tested with the vinegar?