Science 101
Name one type of physical change.
Answers could include:
tearing, cutting, balling up paper
any form of matter- ice/water; water/ice; water/gas,etc
glass breaking
a mixture (fruit salad, taco)
Which landform could be formed from a volcanic eruption?
a.) delta
b.) valley
c.) canyon
d.) mountain
d.) mountain
Which plant makes spores?
a.) iris
b.) pine tree
c.) apple tree
d.) fern
d.) fern
Deposition is a process that ______________.
a.) breaks down rock
b.) builds up mountains
c.) drops rock particles in new places
d.) moves rock particles to new places
c.) drops rock particles in new places
Which of these will the south pole of a bar magnet repel?
a.) a paper clip
b.) the south pole of another magnet
c.) an iron nail
d.) the north pole of another magnet
b.) the south pole of another magnet
What do you call the breaking down of rock at or near the Earth's surface?
a.) physical change
b.) chemical change
c.) weathering
d.) erosion
c.) weathering
Which structure directs most of the activities in animal and plant cells?
a.) the nucleus
b.) organelles
c.) mitochondria
d.) cell membrane
a.) nucleus
A student wants to examine the organelles of cells that make up a leaf. What type of instrument would the student need to see the organelles?
a microscope
How can you cause a chemical reaction in bread dough?
a.) heat it
b.) stir it
c.) cool it
d.) freeze it
a.) heat it
Which statement is true about bacteria?
a.) People use bacteria to make certain foods.
b.) Bacteria can only live on land.
c.) Bacteria make their own food.
d.) All bacteria are beneficial microorganisms.
a.) People use bacteria to make certain foods.
John wants to make a simple circuit. The switch he is going to use is broken. Which material could he use to replace the switch?
a.) strip of cloth
b.) piece of plastic wrap
c.) wooden toothpick
d.) piece of aluminum foil
d.) piece of aluminum foil
Which microorganism is a decomposer?
a.) algae
b.) protozoa
c.) viruses
d.) fungi
d.) fungi
A student draws a Venn diagram to compare processes that change Earth's surface features. Circle A is for Destructive Forces. Circle C is for Constructive Forces. Circle B is for Both. Which of the processes below should go in Circle B?
a.) erosion and deposition
b.) weathering and erosion
c.) volcanic eruptions and deposition
d.) earthquakes and volcanic eruptions
d.) earthquakes and volcanic eruptions
Which statement is true?
a.) A plant cell has organelles, but an animal cell does not.
b.) An animal cell has a cell wall, but a plant cell does not.
c.) A plant cell has a cell wall, but an animal cell does not.
d.) A plant cell has a cell membrane, but an animal cell does not.
c.) A plant cell has a cell wall, but an animal cell does not.
Which is a property of electromagnets AND bar magnets?
a.) include an electrical source
b.) created by an electric current
c.) have a magnetic field that can be strengthened or weakened
d.) has a north and south pole
d.) has a north and south pole
A student argues that some mircoorganisms are harmful. Which is evidence the student could use to support her argument?
a.) Some bacteria causes diseases.
b.) Some bacteria live in the human gut.
c.) Some algae are producers in ponds.
d.) Some fungi are microorganisms.
a.) Some bacteria causes diseases.
Which part of an atom has a negative charge?
a.) electron
b.) proton
c.) nucleus
d.) neutron
a.) electron
Which examples are chemical changes? Hint...more than one
a.) An egg is cooked.
b.) Sugar dissolves in water.
c.) A silver quarter tarnishes.
d.) Water in a pan boils away. (evaporation)
e.) Leaves in a compost pile rot.
a.) An egg is cooked.
c.) A silver quarter tarnishes
e.) Leaves in a compost pile rot.
A student wants to classify plants around his school based on how the plants reproduce. Which plant parts should the student use to sort the plants?
a.) angiosperms and vascular plants
b.) roots and leaves
c.) spores and seeds
d.) needles and flowers
c.) spores and seeds
Which is a learned behavior in dogs?
a.) knowing how to bark
b.) knowing how to sniff for smells
c.) knowing how to chase squirrels
d.) knowing how to shake their paw
d.) knowing how to shake their paw
Below are certain animal characteristics.
Animal X Animal Y
Eats animals Eats plants
Has a backbone Has a backbone
Has scales on body Has feathers
Uses fins to move Uses wings to move
Into which groups can the animals be sorted?
a.) fish and birds
b.) fish and amphibians
c.) reptiles and birds
d.) producers and consumers
a.) fish and birds
When two objects rub against each other, some electrons may move from one object to the other. This is how static electricity occurs. What is happening during this process?
a.) The object that gets electrons will then have a positive charge. The object that loses electrons will then have a negative charge.
b.) The object that gets electrons will then have a negative charge. The object that loses electrons will then have a negative charge.
c.) The object that gets electrons will then have a negative charge. The object that loses electrons will then have a positive charge.
c.) The object that gets electrons will then have a negative charge. The object that loses electrons will then have a positive charge.
___________ and erosion can make a river valley wider and deeper. But the _________ process of deposition can build up parts of the valley.
Weathering
constructive
Four students make scientific models. Their models and observations are described below.
Student #1: Model: Student fills a pot with ice and heats it on a stove. Observation: The ice melts into water.
Student #2: Model: Student shakes a jar filled with salt and water and then puts the jar on their desk. Observation: The water stops moving, and the salt settles to the bottom of the jar.
Student #3: Model: Student places soil at the top of a slide and pours water on the soil. Observation: The water washes the soil down the slide.
Student #4: Model: Student places a plastic bottle filled with water in the freezer overnight. Observation: The water freezes and expands, and the plastic bottle breaks.
Which student's model represents deposition?
a.) Student #1 b.) Student #2
c.) Student #3 d.) Student #4
b.) Student #2
Look at each example. Tell whether it is an instinct or learned behavior.
1. A boy knows how to cry.
2. A girl knows how to swim.
3. A bird knows how to build a nest.
4. A boy can speak Spanish.
5. Mrs. Smith knows how to laugh.
1. instinct
2. learned behavior
3. instinct
4. learned behavior
5. instinct