Science 1
A student places a magnet next to a metal fork and records what happens. Next, he places the same magnet next to a plastic fork and records what happens.
Which question is the student most likely exploring with this investigation?
(a) How do different materials react to magnets?
(b) Do items other than magnets have magnetic power?
(c)What causes magnets to be attracted to metal objects?
(d) Does the size of the magnet affect its magnetic power?
A soil sample contains living and nonliving materials. Which material was once living?
(a) sand particles
(b) decomposing leaves
(c) small pebbles
(d) water droplets
Water can provide energy that may be changed into electricity.
Which kind of water could be used to provide electricity?
(a) pure
(b) moving
(c) deep
(d) cold
Which body part belongs to the skeletal system?
(a)Jawbone (b)Brain (c) Heart (d)Stomach
What is weather?
(a) The condition all around us everyday at a certain place and time.
(b) How hot or cold something is
(c) The condition of the atmosphere at a certain place and time
(d) How much rain falls everyday
Which of the organisms below is BOTH a predator and a prey?
a) grass b) cricket c) bird d) snake
Which unit is used to measure how warm or cool the air is?
(a) Grams
(b) kilometers
(c) degrees Celsius
(d) cubic centimeters
Photosynthesis must occur in plants in order for them to survive. Which of the following is the major product of photosynthesis that helps the plants survive?
(a) carbon dioxide (CO)2
(b) chloroplast
(c) sugar
(d) sunlight
Julie has the following objects:
two ice cubes * an empty glass* a glass of water at room temperature
Which question could Julie answer most easily by conducting a scientific investigation?
(a) What is the temperature of the water?
(b) Does ice melt faster in air or in water?
(c) How long does it take for water to freeze?
(d) Does the mass of an ice cube change when it melts?
While working on a class chemistry experiment, Victor dropped a glass test tube filled with an unknown liquid. What should Victor do first?
(a) put on gloves
(b) inform the teacher
(c) sweep up the broken glass
(d) clean up the spilled chemical
Which statement correctly describes both gases and liquids?
(a) Their shapes stay the same in any container.
(b) Their shapes change when they are in different containers.
(c) Their volumes stay the same in any container.
(d) Their volumes change when they are in different containers.
Which is the hottest planet in the solar system?
(a) Mercury
(b) Saturn
(c) Venus
(d) Pluto
What is the role of decomposers in a food chain?
(a)They consume other organisms.
(b) They break down dead organic matter.
(c) They use the Sun’s energy to make food.
(d) They convert inorganic matter into organic matter.
Which of these is a satellite?
(a) Sun
(b) Earth
(c) Mercury
(d) Moon
Jenny threw a paper airplane toward the west. The wind, however, caused the airplane to move in a southwestern direction.
Which statement best describes the direction of the wind?
(a) The wind is blowing from the north.
(b) The wind is blowing from the south.
(c) The wind is blowing from the west.
(d) The wind is blowing from the east
Students are studying some leaves. They group the leaves by shape. Which science process are the students using when they put the leaves in different groups?
(a) classifying
(b) predicting
(c) measuring
(d) experimenting
Which statement explains why the Sun appears to rise and set each day?
(a) Earth rotates.
(b) The Sun rotates.
(c) The Sun revolves around Earth.
(d) Earth revolves around the Sun.
The process by which clouds change to rain is called_____________.
(a) saturation (b) evaporation
(c) condensation (d) precipitation
In which activity would using the Internet be most helpful?
(a) analyzing the results of an experiment
(b) predicting the outcome of an experiment
(c) measuring the variables used in an experiment
(d) performing research before conducting an experiment
Noah carried a skateboard up a hill and then rode the skateboard down the hill. When Noah reached the bottom of the hill, he rolled to a stop. When did Noah have the most potential energy?
(a) while carrying the skateboard up the hill
(b) while standing on the skateboard at the top of the hill
(c) while riding the skateboard down the hill
(d) while standing on the skateboard at the bottom of the hill
Which forms of energy are produced by a burning candle?
(a) heat and mechanical
(b) electrical and sound
(c) light and electrical
(d) heat and light
Grade Four students were asked to bring to school samples of soils that keep water for a long time. Which type of soil would that be?
(a) clay (b) sand
(c) loam (d) sandy-loam
Many human activities, such as driving a car, cause the release of air pollutants. Which substance is a common air pollutant when driving a car?
(a) carbon monoxide
(b) chlorine
(c) nitrogen
(d) iron oxide
The two sources of water in nature’s water cycle are _____.
(a) rain water and river water
(b) ground water and surface water
(c) deep water and shallow water
(d) cold water and hot water
Stanley helped his mother install a solar generator on the roof of their home. Which statement best explains the advantage of using a solar generator?
(a) Solar power is easy to store.
(b) Solar power is readily available.
(c) Solar generators can produce energy at all times.
(d) Solar generators can produce very large amounts of energy.