Which mixture could you separate most easily using filter paper?
sugar and water
sand and water
vinegar and oil
salt and sugar
What is vinegar and oil
100
Dams help prevent floods. What is a drawback of dams?
What is they prevent sediment from moving downstream.
100
A river channel is now so shallow that ships are becoming stuck in the mud. What could be a cause?
What is water depositing sediment.
100
Which of the following involves a chemical change?
a metal shower head becomes clogged with minerals
a well runs dry
a safety label warns against mixing household cleaning products
a leaky faucet wasters gallons of water
What is a safety label warns against mixing household cleaning products
200
What would help slow the erosion of a bare hillside from rainfall?
What is growing plants.
200
What does an electromagnet have that a bar magnet does not have?
What is coil of wire
200
To make a chocolate cake, a baker mixes 250 grams of flour, 50 grams of cocoa, and 100 grams of sugar. What is the mass of the dry ingredients in the cake?
What is 400 grams
200
Which of the following is NOT a means of flood control?
dam
jetty
levee
floodplains
What is a jetty
200
List two organelles found in a plant cell and not in an animal cells.
What is the chloroplast and the cell wall.
300
Which type of organism causes a red tide that might be harmful to fish?
What is algae
300
When balloons are faced side by side, two balloons stay where they are placed. They do not move any closer together. They do not move any further apart. What could you say about the balloons?
What is they are uncharged.
300
Why are earthquakes infrequent in Georgia?
What is Georgia is not located near the edge of a plate.
300
A parallel circuit contains a light bulb, buzzer, several wires, and a battery. The buzzer make a sound, but the light bulb will not light. Why is this true?
What is a wire is loose in the circuit.
300
What does the process of beach restoration (reclamation) do?
What is it replaces the sand on the beach by moving it to other places or bringing in new sand.
400
Which tool did Robert Hooke use when he first observed cells?
What is a microscope
400
Which of the following is NOT a chemical change?
cookie dough bakes
toast burns
bread molds
folding paper
What is folding paper.
400
How does GPS technology help seismologists study earthquakes?
What is it measure fault movement during earthquakes.
400
Which of the following is built by waves and currents?
plain
volcano
mountain
barrier island
What is a barrier island
400
Which of these is a vertebrate?
dragonfly
starfish
bird
worm
What is a bird
500
The movement of which of Earth's layers causes plates to move?
What is the mantle
500
Which of the following is an instinct?
seeing eye dog
bird making a nest
riding a bike
reading
What is bird making a nest
500
A child uses 55 interlocking plastic blocks to build a model rocket. Each block has a mass of 12 grams. What is the mass of the rocket?
What is 660 grams.
500
Vascular tissue that carries water and nutrients from the roots to the rest of the plant is called what?
What is xylem
500
Which of the following is not a permanent magnet?
bar magnet
electromagnet