Science review

1. Suzie Que is designing an amazing experiment to investigate the chemical properties of a metal. Which statement best describes why it is important that Heather write down the steps in her experimental procedure?

• The data will show which chemical properties are not common.

• The experiment can be repeated by others and then they can compare the results.

• This will help Heather learn how to write about experiments.

• The experiment will help others learn about how chemicals are used.

YES! Though plants and animals are different, they share some similar structures. The following statements compare physical structures of plants and humans. Which statement does NOT provide an accurate comparison of similar physical structures of plants and humans?

• Plants have roots that keep them in the ground and humans have feet that keep them standing on the ground.

• Plants have a stem to provide support and humans have a skeleton to provide support.

• Both plants and humans have reproductive structures called ovaries which contain eggs.

• Both plants and humans have outer coverings that help protect them.

When Bill, a scientist is observing during an experiment, the scientist is_______

• Sorting things by when they happened or by their size

• Sharing information with other scientists

• Collecting opinions of those who watched the experiment

• Collecting evidence by using his or her senses

Think back to the water cycle! What is the process of liquid surface water becoming a gas?

• Evaporation

• Precipitation

• Condensation

• Transpiration

We are going on a field trip and need a snack. The snack is mixture of many different ingredients: Peanuts, oats, raisins, sugar, m&ms, granola

• Comparing their color

• Comparing their magnetic attraction

• Comparing their ability to dissolve in water

• Comparing their taste

A meteorologist predicts that the day will be sunny and dry because the local air pressure is high. No humidity?! Must not be in Florida! ;)

What instrument is used to measure air pressure?

• Anemometer

• Barometer

• Compass

• Thermometer

Sally, Bob, and Jim are experimenting with a toy car on a smooth, wooden ramp that has a height of 1 meter. They apply a force of 2 newtons to the car to push it down the ramp. The students measure how fast it rolls down the ramp. They want to try to get the car to go even faster down the ramp.

• Increase the force applied to the car

• Decrease the height of the ramp

• Decrease the angle of the ramp

• Increase the friction of the car

SOLAR SYSTEM!!!!!

Which of the following best describes the outer planets?

• Are closer to the sun and are rockier

• Are farther away from the sun and are made up mostly of gas

• Have a higher average temperature than the inner planets

• Have less rings than the inner planets

Oh, we love bugs!

Peppered moths are found in two different color varieties: a light-colored variety and a dark-colored variety. Two hundred years ago, over the 'pond', light-colored moths were more common than dark-colored moths. The light-colored moths were able to hide better from predators on the trees. Progress in industry resulted in the building of factories in England. Over time, the trees were darkened and covered by soot from the factories.

How did the peppered moth adjust to its changed environment to continue to survive?

• More large-sized moths survived.

• more light-colored moths survived

• more small-sized moths survived

• more dark-colored moths survived.

Little Tommy throws a ball across a field. The ball flies through the air until it hits the ground. Which force brings the ball to the ground?

• magnetism

• pull

• friction

• gravity