Show:
acids/bases
light rays
mass/volume/density
cells
populations
100
an indicator changed from red to blue when students tested: lemon juice, a bar of soap, white vinegar, a cola drink
What is a bar of soap?
100
question 1
What is student 4?
100
Students determine the mass and height of four objects but are unsure of the volume of each object. Which object has a high mass but would have a small volume? a brick ** a flower ** an elephant ** a balloon **
What is a brick?
100
How can a student decide if a cell is from a plant or an animal? if the cell has a cell wall, it must be from a plant ** if the cell has cytoplasm, it must be from a plant ** if the cell has a nucleus, it must be from an animal ** if the cell has a cell membrane, it must be from an animal**
What is if the cell has a cell wall, it must be from a plant.
100
Certain bacteria live in the digestive systems of cows. The bacteria receive nutrients from food the cows eat. This relationship is mutualistic because the cows: need to find extra food ** can digest food more easily ** inherit a dangerous disease ** develop painful stomach cramps **
What is can digest food more easily?
200
Which item is not a common base? vinegar, bar of soap, ammonia, baking soda
What is vinegar?
200
see question #2
What is light rays come together through the convex lens?
200
Which method would be used to determine the density of an object? compare the mass and the weight ** compare the mass and the volume ** measure the volume and multiply by the mass ** measure the lenght and width and multiply by two **
What is compare the mass and the volume?
200
How are chloroplasts and mitochondria similar? both capture and use the Sun's energy** both change energy from one form to another** both combine oxygen with food to produce energy ** both contain chlorophyll to make food and release energy
What is both change energy from one form to another?
200
Kudzu is a common plant found in Alabama. Which statement correctly describes a relationship between kudzu and an abiotic factor in an ecosystem? a deer eats kudzu ** the sun helps kudzu grow ** kudzu vines cover nearby trees ** kudzu leaves provide shelter for insect **
What is the sun helps kudzu grow?
300
A scientist mixes rainwater and cabbage juice. The cabbage juice turns green. The scientist correctly concludes that the rainwater is : a neutral, a base, an acid, an indicator
What is a base?
300
see question #3
What is student 4?
300
Two blocks of wood are the same size, but one floats in water and one sinks. This occurs because they have different: masses, but the same density ** volumes, but the same density ** masses and different densities ** volumes and different densities **
What is masses and different densities?
300
Which part of the cell is a thick fluid? cytoplasm** mitochondria ** nucleus ** vacuole
What is cytoplasm?
300
A certain species of vine grows on the trunk of a tree. The vine uses the tree to help it reach sunlight. Its relationship with the tree is a type of symbiosis called commensalism. This relationship means that : the vine takes nutrients from the tree ** the vine chokes the tree limbs that it surrounds ** the tree is not harmed by the climbing vine ** the tree benefits from having the vine grow on it **
What is the tree is not harmed by the climbing vine?
400
Which group of substances would MOST LIKELY be classified as acids? soap, ammonia, limewater** ammonia, vinegar, baking soda ** vinegar, orange juice, lemon juice ** orange juice, limewater, baking soda **
What is vinegar, orange juice, lemon juice
400
see question # 4
What is a?
400
Students make four piles with an equal mass of dirt, rocks, sugar, and feathers. Which pile has the greatest volume? 1 kg pile of dirt ** 1 kg pile of rocks ** 1 kg pile of sugar ** 1 kg pile of feathers **
What is a 1 kg pile of feathers?
400
Plant cells can make their own food. Which organelle performs this function? ribosome ** chloroplast ** golgi apparatus ** endoplasmic reticulum
What is chloroplast?
400
Which statement describes a mutualistic relationship between populations of insects and wildflowers in a prairie ecosystem? both the insect and wildflower benefit from one another ** both the insect and wildflower are unaffected by one another ** the wildflowers are harmed, but the insect benefits ** the insects are harmed, but the wildflower benefits **
What is both the insect and wildflower benefit from one another?
500
A student added an unknown solution to cabbage juice, and the solution changed from purple to dark green. Which statement correctly identifies the solution? the solution is a neutral ** the solution is a weak acid ** the solution is a strong acid ** the solution is a strong base **
What is the solution is a strong base?
500
see question # 5
What is the lenses bend light rays outward to focus the image on the back of the eye instead of in front of it?
500
How should you calculate the density of a material? add mass to volume ** divide mass by volume ** divide volume by mass ** multiply mass by volume **
What is divide mass by volume?
500
Which organelle allows a plant to stand upright? cell wall ** cytoplasm ** mitochondria ** nucleus
What is cell wall?
500
see question # 8
What is the hawks would eat more rabbits?