Science Review Test

If you wanted to test the effect of gravity on an object, which set of materials should you choose?

• battery, wires, lightbulbs
• hot plate, water, thermometer
• two different types of balls, metric ruler
• two cups, two different types of soil, water and seeds

Students conduct an investigation to observe the Sun's movement.   Which safety procedure should students following during this investigation?

• Wear gloves and goggles
• Keep loose hair tied back
• Never look directly at the Sun
• Record all data in science notebooks

Students conduct and investigation to determine which substances are soluble in water.  All of the following have the property of solubility in water EXCEPT - 

• sugar cubes
• salt crystals
• cooking oil
• food coloring

Which mixture can be separated using a coffee filter?

• rocks and sand
• sand and water
• lemon juice and water
• sand and iron filings

Plants are known as producers because they produce their own food.  How do producers receive the energy for this process?

• By consuming soil nutrients
• By absorbing sunlight
• By releasing water
• By producing oxygen

What physical property of matter can be measured using the triple beam balance?

• length
• height
• volume
• mass

Samantha drops a ball and it falls to the ground. What does this illustrate about gravity?

• Gravity pulls the ball toward the center of Earth.

• Gravity causes the friction on the ball to disappear.

• Gravity pushes the ball away from Suzette’s hands.

• Gravity causes the mass of the ball to decrease as it falls.

Ella pushes a plastic toy car to set it in motion. Which force is NOT acting on the car?

• pulling force from gravity

• pushing force from her hand

• magnetic force from the north pole

• friction between the wheels and the surface

The jet engines of a moving plane exert a force to make the plane travel forward at a constant speed. Which of these changes to the jet is likely to happen if the engines exert a greater force?

• increase in weight

• balance of forces

• decrease in braking distance

• increase in speed

Which box will require the most force to move?

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