Physical Science
A student releases a baseball and a bowling ball from the same height at the same exact time. What will happen?
What is they will hit the ground at the same time?
Resources that are found in Earth and that keeps returning.
What is renewable resource?
Which type of ecosystem is terrestrial?
(a)ocean (b)desert (c)forest
What is forest?
What is an object that varies in size and is make up of brightly shining gases?
What is a star?
Cindy lights a candle and watches it burn. She observes that some wax melts, some smoke comes from the wick, the wick burns, and then melted wax hardens again. Which is an example of a chemical change?
What is smoke comes from the wick?
Matthew has a toy car. He rolled the car across the floor and measured the speed. He added a sloped ramp and rolled the car again. What should Matthew discover about the motion of the car after rolling down the ramp?
What is the car will go faster and further?
A group of researchers developed solar-powered cars. What is the advantage of using solar-powered cars instead of gasoline-powered cars? (a)solar-powered cars create less air pollution (b) solar-powered cars can be manufactured easier (c)solar-powered cars are faster
What is (a)solar powered cars create less air pollution than gasoline cars?
Scientists have discovered an increase in the amount of green algae in a lake. How will the increase of green algae population benefit the fish population of the lake?
What is provide more food for the fish?
If Earth were to move farther away from the Sun, what effect would occur?
What is the Earth would be colder and darker?
What is it has the same mass at the liquid water?
Rebecca places 15 books in a large box and pushes it across the floor of her office. She finds that the box moves slowly. What should Rebecca do to increase the speed?
What is push with greater force?
A town recently cleared a wooded area to build a basketball court. What could the town do to minimize erosion?
(a)dig ditches around the basketball court (b) Put up a chain-linked fence round the basketball court (c) Plant bushes and trees around the basketball court
What is (d) plant bushes and trees around the basketball court?
How is it possible for an ecosystem to support many different organisms? (a)They have to have individual ecosystems (b)they compete for resources in the ecosystem (c) they occupy different niches
What is occupy different niches?
Which planet has the longest year?
(a)Mercury (b) Mars (c)Uranus
What is Uranus?
A student inflates 2 balloons to the same volume. One with helium and the other with air. When she let them go, the helium filled balloon floated away and the air filled balloon sank. Why?
What is the mass of the helium is less dense than the mass of the air?
Car A and Car B are traveling the same distance and starting from the same location. If Car A makes the trip in 3 hours and Car B makes the trip in 1.5 hours, which car has the greatest speed?
What is Car B?
What is they take a long time to form?
Both a hawk and an owl made homes on a large oak tree in the forest. What do you predict will happen? (a) share food (b) compete for food (c) eat at different times
What is compete for food?
Name the terrestrial planets.
What are Mercury, Venus, Earth and Mars?
What is the best way to separate a mixture of sand, salt, and water?
What is filtration and evaporation?
An object at rest will stay at rest, or an object in motion will stay at motion. What is this called?
What is inertia?
Water conservation has become a very important issue for society. Why would watering crops, grass, and other plants early in the morning be considered a good way to conserve water?
What is temperatures are cooler in the morning which means less evaporation?
In a forest ecosystem a hawk is a predator, and its prey is a mouse. What would happen if the number of hawks decline?
What is the population of mice would increase?
What effect would happen if the Earth began to revolve faster around the Sun?
What is years would be shorter?
During an activity, Samuel prepares a solution by dropping 6 sugar cubes in a glass of tea. How would the concentration change if one more cube was added to the solution? Why?
What is the concentration would increase because the quantity of the solute increases?