In this video, we'll go through a FREE GED Science Practice test! Imagine being done with GED science for GOOD! My goal in this video is to get you MUCH closer to doing that!

GED Science Practice Test Pt 2: [ Ссылка ]. Thank you 4 watching!

00:00 Intro
1:33 Q1-States of matter, boiling points, melting points
7:36 Q2-Reactions/equations, conservation of mass
18:11 Q3-Standard heats of combustion/mean
29:44 Q4-Punnett squares, genetics
35:16 Q5-Punnett squares, genetics
37:17 Q6-Punnett squares, genetics
38:17 Q7-Photosynthesis
40:38 Q8-Temperature conversion
43:26 Q9-Photosynthesis
48:44 Q10-Center of Universe

1. Which of the following statements is supported by the data in the chart shown at 1:51?
A. Radon has a higher melting point than titanium.
B. Titanium and magnesium are both liquids at room temperature.
C. Titanium, magnesium, sulfur, and radon are all solids at room temperature.
D. Radon is a gas at room temperature

2. H2CO3 molecules are composed of two H atoms, one C atom, and three O atoms. H2O is also composed of H and O, but H2O has two fewer O atoms than carbonic acid does. CO2 molecules are composed of one C atom and two O atoms. Which of the following statements best describes the chemical reaction represented by the equation below?

H2CO3 → H2O + CO2

A. H2O is reacting with CO2 to make H2CO3.
B. H2CO3 is decomposing into H2O and CO2
C. H2CO3 acid is decomposing into pure H2O
D. C atoms were created during the reaction, resulting in more C atoms in the products.

3. The standard heat of combustion is the energy released when a substance undergoes combustion, with excess oxygen at standard conditions. A scientist determined the standard heat of combustion for 5 chemicals in kJ/mol. She lost the data for chemical 4.
The data:
1 = 1167
2 = 3393
3 = 3268
4 = ?
5 = 1527

Mean = 2088.2.

What was the heat of combustion for chemical 4?

Questions 4-6 refer to the following paragraph and diagram shown at 30:00:

The Punnett square shows all the possible combos of alleles for color in offspring pea plants when two-color hybrid pea plants are crossed. A capital P represents the dominant color (purple) allele, while a lowercase p represents the recessive color (white) allele. A combination of two dominant alleles results in a purple phenotype. A combination of a dominant allele and a recessive allele also results in a purple phenotype. However, a combination of two recessive alleles results in a white phenotype.

One parent’s alleles are seen on the left-hand side of the square, and the other parent’s alleles are seen on the top of the square. The genotypes of the offspring are shown in the boxes.

4. To only grow purple pea plants, which genotype would you NOTwant?
A. Pp
B. pP
C. pp
D. PP

5. What is the probability that the offspring will be white?
A .25
B .50
C .75
D 1.00

6. What is the probability that the offspring will be purple?
A .25
B .50
C .75
D 1.00

7. Below is the chemical equation for photosynthesis in plants (shown at 38:32).

6CO2 + 6H2O reacts in the presence of light to yield C6H12O6 + 6O2

Which of the following is correct?
A. H2O and CO2 are produced
B. Sugar and O are the reactants
C. CO2 and H2O are the reactants
D. Light energy is not involved

8. The data below represents the highest daily temp in Hawaii measured over a 4 day period in degrees F.
Day 1: 86
Day 2: 87
Day 3: 87
Day 4: 86

Formula:
C = (F-32)x5/9

What was the temp on day 3, in degrees C?

9. Which of the following is false based on the info in the diagram?
A. Sugar is synthesized from CO2 and H2O
B. During the Calvin cycle, CO2 is captured and converted into sugar.
C. Light energy is converted into chemical energy that gets stored in sugars.
D. H2O is released as a waste product.

I couldn't fit # 10. Sorry!

More science videos:

Top GED Science Topics to Know for a High Score: [ Ссылка ]
Easily Hack GED Science Graphs to Pass Faster: [ Ссылка ]
Master Photosynthesis for a Better GED Science Score: [ Ссылка ]

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